AI & ChatGPT searches , social queries for MARTENSITE
Search references for MARTENSITE. Phrases containing MARTENSITE
See searches and references containing MARTENSITE!
Search references for MARTENSITE. Phrases containing MARTENSITE
See searches and references containing MARTENSITE!MARTENSITE
Type of steel crystalline structure
Martensite is a very hard form of steel crystalline structure. It is named after German metallurgist Adolf Martens. By analogy the term can also refer
Martensite
Plate-like microstructure in steels
originally described the microstructure as similar in appearance to tempered martensite. A fine non-lamellar structure, bainite commonly consists of cementite
Bainite
Process of heating something to alter it
change an alloy's properties during heat treatment: the formation of martensite causes the crystals to deform intrinsically, and the diffusion mechanism
Heat_treating
Alloy which returns to a preset shape when heated
phases, with three different crystal structures (i.e. twinned martensite, detwinned martensite, and austenite) and six possible transformations. The thermo-mechanic
Shape-memory_alloy
Steel alloy resistant to corrosion
The austenite is transformed into martensite, a hard body-centered tetragonal crystal structure. The quenched martensite is very hard and too brittle for
Stainless_steel
Alloy of iron and carbon
thermal history and alloying, the microstructure may contain the distorted martensite phase or the carbon-rich cementite phase, which are tetragonal and orthorhombic
Steel
Steel known for strength and toughness
high-Cr, high-Ni steels are generally austenitic and unable to become martensite when heat treated, while lower-Ni steels can. Alternative variants of
Maraging_steel
Temperature graphs plotted against time
of martensite or bainite instead of pearlite. This is possible provided the cooling rate is such that the cooling curve intersects the martensite start
Isothermal transformation diagram
Isothermal_transformation_diagram
Steel in which the main interstitial alloying constituent is carbon
great strength (but less than martensite), greater ductility, higher impact resistance, and less distortion than martensite steel. The disadvantage of austempering
Carbon_steel
Country in South Asia
he made significant contributions in molecular morphology, physical martensite, and their applications in condensed and material physics. In 2023, Pakistan
Pakistan
One of the five families of stainless steel
body-centered tetragonal (BCT) crystal structure and a predominantly martensite structure. They are characterized by being magnetic and having the ability
Martensitic_stainless_steel
Steel alloyed with a variety of elements
ductility. At the atomic level, the four phases of auto steel include martensite (the hardest yet most brittle), bainite (less hard), ferrite (more ductile)
Alloy_steel
Heat treatment that alters the properties of a material
sufficiently slow so as to not let the austenite transform into bainite or martensite, but rather have it completely transform to pearlite and ferrite or cementite
Annealing_(materials_science)
Crystal patterns found in some meteorites
Widmanstätten transformation differs from other transformations, such as a martensite or ferrite transformation. The structures form at very precise angles
Widmanstätten_pattern
Rapid cooling of a workpiece to obtain certain material properties
metallurgy, quenching is most commonly used to harden steel by inducing a martensite transformation, where the steel must be rapidly cooled through its eutectoid
Quenching
above the martensite start temperature (Ms). Interrupted quenching involves halting the cooling process at a temperature above the martensite transformation
Martempering
Type of iron oxide
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Rust
Metallurgical process
through a quench box. The quenching converts the billet's surface layer to martensite, and causes it to shrink. The shrinkage pressurizes the core, helping
Thermomechanical_processing
Type of steel
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Crucible_steel
austenite at room temperature. It is designed to increase the amount of martensite in the steel's crystal structure, increasing its strength and hardness
Cryogenic_hardening
Alloy known for shape-memory effect
crystal structure known as martensite (daughter phase). Four temperatures are associated to the austenite-to-martensite and martensite-to-austenite transformations
Nickel_titanium
Reversible response to applied stress in materials
pseudoelasticity is called the Bain Correspondence. This involves the austenite/martensite phase transformation between a face-centered crystal lattice (FCC) and
Pseudoelasticity
Technique used in heat treating
and then cooling part of it quickly, turning that part into very hard martensite while the rest cools more slowly and becomes softer pearlite. The other
Differential_heat_treatment
Compound of iron and carbon
austenite as austenite transforms to ferrite on slow cooling, or from martensite during tempering. An intimate mixture with ferrite, the other product
Cementite
Process of heat treating used to increase the toughness of iron-based alloys
so as not to destroy the very-hard, quenched microstructure, called martensite. Precise control of time and temperature during the tempering process
Tempering_(metallurgy)
Alloy steel
stabiliser, which is necessary for martensite formation. HY-80 is prone to the formation of martensite and martensite's peak hardness is dependent on its
HY-80
but is not the martensite that is responsible for the shape memory and superelastic effect. In connection with nitinol, "martensite" normally refers
R-Phase
Type of steel with a ferritic–martensitic microstructure
consisting of a soft ferrite matrix containing islands of martensite as the secondary phase (martensite increases the tensile strength). Therefore, the overall
Dual-phase_steel
Type of vehicle suspension
quenched in oil bath to get martensite structure. Martensite is the hardest form of steel crystalline structure. Martensite is formed in carbon steels
Leaf_spring
Visible effect on Japanese blades
hand, the exposed edge cools very rapidly, changing into a phase called martensite, which is nearly as hard and brittle as glass. The hamon outlines the
Hamon_(swordsmithing)
Form of iron
transforms into martensite, a body centered tetragonal structure (BCT). The rate of cooling determines the relative proportions of martensite, ferrite, and
Austenite
Type of cast iron
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Ductile_iron
Shift of atomic positions in a crystal structure
notable occurrence observed in the context of steel materials. The term "martensite" was originally coined to describe the rigid and finely dispersed constituent
Diffusionless_transformation
Mixture or metallic solid solution composed of two or more elements
trapped within the iron crystals. When rapidly cooled, a diffusionless (martensite) transformation occurs, in which the carbon atoms become trapped in solution
Alloy
Iron-carbon alloy
the lower iron-carbon austenite (which on cooling might transform to martensite). These eutectic carbides are much too large to provide the benefit of
Cast_iron
Type of tool steel
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Silver_steel
Iron alloy with a very low carbon content
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Wrought_iron
Type of alloy steel
microstructure that contain small, uniformly distributed sections of martensite. This microstructure gives the steels a low yield strength, high rate
High-strength_low-alloy_steel
Alloy of iron and carbon
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Gray_iron
Flexible form of cast iron
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Malleable_iron
Variety of steel
extensively in shims due to its resistance to deformation in low thicknesses. Martensite Engineering.com (23 October 2006). "Springs". Archived from the original
Spring_steel
Steel whose surface rust inhibits further rusting
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Weathering_steel
Eutectic mixture of austenite and cementite
bainite can develop instead of pearlite, and with very rapid cooling martensite can develop. The story of ledeburite begins in the late 19th century when
Ledeburite
Metal heat treatment process
outer surface becomes hard due to the transformation from austenite to martensite, while the core remains soft and tough as a ferritic and/or pearlite microstructure
Carburizing
American material scientist
Engineering Institutions Caltech Courant Institute of Mathematical Sciences Thesis Microstructure of Martensite (1991) Doctoral advisor Richard James
Kaushik_Bhattacharya
Heat treatment in ferrous materials
typically above the Martensite start of the austenite and held. In some patented processes the parts are quenched just below the Martensite start so that the
Austempering
Class of high-strength steel alloys
with sufficient thermodynamic instability such that transformation to martensite is achieved during loading or deformation. Many automotive TRIP steels
TRIP_steel
Type of steel
ε-martensite nucleation and deformation twinning are energetically competitive. Deformation twins may either act as nucleation sites for ε-martensite or
TWIP_steel
Lamellar structure of ferrite and cementite
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Pearlite
Phase of iron only stable at high pressures
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Hexaferrum
Subset of tool steels
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
High-speed_steel
Structure composed of thin alternating layers of different materials
liquid to form an amorphous solid, and cooling eutectoid austenite to form martensite. In biology, normal adult bones possess a lamellar structure which may
Lamellar_structure
Samurai sword
cooled very suddenly by quenching in water, the structure changes into martensite, which is a very hard form of steel. When austenite is allowed to cool
Katana
Field of science that studies the physical and chemical behavior of metals
after heating, thus "freezing" the metal's molecules in the very hard martensite form, which makes the metal harder. Tempering relieves stresses in the
Metallurgy
Carbon steel pipe specification
[540 °C] so that no untempered martensite remains, or otherwise processed in such a manner that no untempered martensite remains. 4.4 When pipe is cold
ASTM_A53_steel
Hardness test
materials Material Value 316L stainless steel 140HV30 347L stainless steel 180HV30 Carbon steel 55–120HV5 Iron 30–80HV5 Martensite 1000HV Diamond 10000HV
Vickers_hardness_test
German metallurgist (1850–1914)
Groß-Lichterfelde) was a German metallurgist and the namesake of the steel structure martensite and the martensitic transformation, a type of diffusionless phase transition
Adolf_Martens
Alloy steel containing around 13% manganese
the transformation of the malleable austenite phase into hard brittle martensite that takes place for normal steels when they are quenched in the hardening
Mangalloy
Chemical element with atomic number 26 (Fe)
brittle martensite. The steel can then be tempered by reheating to a temperature in between, changing the proportions of pearlite and martensite. The end
Iron
Carbon steel quenched and tempered after a heat treatment
followed by tempering. The quenching results in the formation of metastable martensite, the fraction of which is reduced to the desired amount during tempering
Hardened_steel
Pakistani nuclear physicist (1936–2021)
metallurgical engineering in 1972. His thesis included fundamental work on martensite, and its extended industrial applications in the field of graphene morphology
Abdul_Qadeer_Khan
Intermediate energetic state within a dynamical system
but only after overcoming an activation energy – an intervening hill. Martensite is a metastable phase used to control the hardness of most steel. Metastable
Metastability
harvesters. The magnetic shape memory effect occurs in the low temperature martensite phase of the alloy, where the elementary cells composing the alloy have
Magnetic_shape-memory_alloy
Type of martensitic alloy steel
content. USAF-96 also needs no tungsten.) Bhadeshia, H. K. D. H., Tempered Martensite, archived from the original on 2006-10-09, retrieved 2008-12-25. AerMet
Aermet
Cultural forging process for bladed weapons
400 °F (204 °C), reducing the hardness in the martensite and turning it into a form of tempered martensite. The pearlite, on the other hand, does not respond
Japanese_swordsmithing
One of the five families of stainless steel
structures results in the formation of body-centered tetragonal (BCT) martensite, a significantly harder crystal structure of steel. The misalignment of
Austenitic_stainless_steel
Chinese manufacturing company
means of a heat treatment process resulting in blades exhibiting Bainite/Martensite microstructures, a process pioneered by Howard Clark of Omimi and adopted
Dalian_Hanwei_Metal
Materials well-suited to be made into tools
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
Tool_steel
American condensed matter physicist
near phase transitions, including ferroelectrics, multiferroics, and martensites. She also works on the theoretical design of new materials. She is a
Karin_M._Rabe
Canadian Class I freight railway company
on the head of the rail just outside the joint bars, where untempered martensite associated with the welds led to fatigue and subsequent cracking that
Canadian_National_Railway
Class of materials
different crystal structures. For example, the transition from austenite to martensite. During this transition, the entropy of the system changes. This is due
Elastocaloric_materials
German knife-maker
stainless knife steels, as it completes the conversion of austenite to martensite. The process of forging is intended to produce improved cutting-edge retention
Zwilling_J._A._Henckels
into the martensite form. The strain remains constant during this transformation until the whole NiTi mass has converted to the martensite form, which
Nickel_titanium_rotary_file
Class of iron alloys
face-centred cubic crystal structure (via Ni). It can take the form of ferrite, martensite, or austenite. The binary Fe-Ni system has been investigated for analogic
Ferroalloy
French scientist and engineer (1849–1912)
named several phases that occur in iron and steel microstructures such as martensite, after A. Martens, and cementite. He also provided the symbols α,β,γ and
Floris_Osmond
Topics referred to by the same term
(steel), a process in which steel is partially protected against rust Martensite, a crystalline form of steel Iron(II,III) oxide, a black oxide that may
Blue_Steel
American engineer and researcher
lenticular-tetragonal and packet-cubic martensites. His research identified the meaningful suppression of twinning in higher carbon cubic martensites and with D. W. Hoffman
Christopher_L._Magee
French metallurgist
amenable to production processes by studies on the transitions between martensite and austenite. Portevin edited the journal Revue de métallurgie from 1907
Albert_Portevin
Properties of steel and cast iron
The carbon equivalent is a measure of the tendency of the weld to form martensite on cooling and to suffer brittle fracture. When the carbon equivalent
Equivalent_carbon_content
mechanically metastable and will form martensite when subjected to high stress. The combination of hard, wear-resistant martensite with ausferrite results in good
Austempered_Ductile_Iron
Wheel-slide prevention in railway vehicles
structure of the wheel's steel alloy. The steel becomes more brittle (martensite) which leads to cavities forming in the wheel. Wheel flats on railway
Wheel_slide_protection
Flaw which compromises a weld's structural integrity
in steels is associated with forming martensite as the weld cools. Hydrogen has very low solubility in martensite, which can lead to the gas being trapped
Welding_defect
Japanese swordsmith (c.1264–1343)
hamon), kinsuji (lightning shaped lines of nie), and nie (crystals of martensite embedded in a pearlite matrix). Swords created by Masamune often are referred
Masamune
Depth to which a metal is hardened after being submitted to a thermal treatment
to allow the austenite to transform fully into a structure other than martensite or bainite. This results in a work-piece that does not have the same crystal
Hardenability
District of Tamil Nadu in India
stainless steel/carbon steel. The plant can produce Austenitic, ferritic, Martensite and low-nickel stainless steel in the form of coils and sheets with an
Salem_district
Ammunition type designed to penetrate armour
chilled and became intensely hard (resistant to deformation through a Martensite phase transformation), while the remainder of the mold, being formed of
Armour-piercing_ammunition
Physics studies of metallurgy
discovers superlattices 1926 – Bain describes the atomistic formation of martensite. 1926 – William Hume-Rothery enumerates the Hume-Rothery rules. 1930 –
Physical_metallurgy
on toughness. In 18%Ni-maraging steel, the carbon content is lower and martensite is strengthened by substitutional Ni atoms. In addition, transformation
Toughening
transformed into martensite, and the ferrite remains on cooling. The steel is then subjected to a temper cycle to allow some level of martensite decomposition
Strengthening mechanisms of materials
Strengthening_mechanisms_of_materials
Metalworking process
becomes BCT (body-centered tetragonal) instead. This phase is called martensite, and is extremely hard due to a combined effect of the distorted crystal
Hardening_(metallurgy)
Standard alloy numbering system for steel grades
Ferrite Austenite Cementite Martensite Graphite Microstructures Spheroidite Pearlite Bainite Ledeburite Tempered martensite Widmanstätten structures Classes
SAE_steel_grades
Property of materials that causes them to change their shape during magnetization
James, R. D.; Wuttig, Manfred (12 August 2009). "Magnetostriction of martensite". Philosophical Magazine A. 77 (5): 1273–1299. doi:10.1080/01418619808214252
Magnetostriction
Metal forming process
transformation products (such as ferrite, austenite, pearlite, bainite, and martensite in steel); inducing precipitation hardening; and, controlling the toughness
Rolling_(metalworking)
Type of traditionally made sword from Japan
tank of water and thereby develop into the harder form of steel called martensite, which can be ground to razor-like sharpness. The thickly coated back
Japanese_sword
Welding process
require preheating to slow the cooling process and prevent the formation of martensite in the heat-affected zone. Tool steels should also be preheated to prevent
Gas_tungsten_arc_welding
Scanning electron microscopy technique
A map of indexed EBSD orientations for a ferrous martensite with high-angle (>10°) boundaries
Electron backscatter diffraction
Electron_backscatter_diffraction
High chromium, low carbon stainless steel type
if cooling occurs quickly, some of the austenite will transform into martensite. Tempering or annealing will transform the martensitic structure into
Ferritic_stainless_steel
Instrument measuring volume changes
Dilatometers have been used in the fabrication of metallic alloys, study of martensite transformation, compressed and sintered refractory compounds, glasses
Dilatometer
Process of hardening the surface of a metal object
then cooled rapidly, generally using water; this creates a "case" of martensite on the surface. A carbon content of 0.3–0.6 wt% C is needed for this type
Case-hardening
Nitrogen diffusion case-hardening process
to generate a unique duplex microstructure in an iron-manganese alloy (martensite-austenite, austenite-ferrite), known to be associated with strongly enhanced
Nitriding
MARTENSITE
MARTENSITE
MARTENSITE
MARTENSITE
Girl/Female
Bengali, Indian
Good Example
Boy/Male
Hindi
Ancient.
Biblical
totality; or the perfection of the father
Male
Danish
, a female dog; or, the mad, raging.
Girl/Female
Bengali, Indian
Dedicate
Male
Swedish
Swedish form of Latin Gustavus, GUSTAF means "meditation staff."
Girl/Female
Muslim/Islamic
Is the voice of a dove
Girl/Female
French German Hungarian
Pledge.
Girl/Female
Australian, Danish, Hebrew, Swedish
Pledged to God; God's Promise; God is My Oath
Surname or Lastname
English
English : habitational name from any of various places, for example in Cheshire, Derbyshire, Shropshire, Staffordshire, and Surrey, so called from Old English norð ‘north’ + burh ‘fortress’, ‘fortified town’.
MARTENSITE
MARTENSITE
MARTENSITE
MARTENSITE
MARTENSITE