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austenite
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austenite
austenite2 Metallurgy. (ˈɔːstɪnaɪt) [a. F. austenite (Osmond 1896, in Bull. Soc. d'Encourag. de l'Industrie 738), f. the name of Sir William C. Roberts-Austen (1843–1902): see -ite1.] (See quot. 19101.) Hence austeˈnitic a., containing austenite.1902 [see troostite 2]. 1905 Nature 18 May 69/1 The po...
Oxford English Dictionary
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Austenite
The metal is annealed in this temperature range until the austenite turns to bainite or ausferrite (bainitic ferrite + high-carbon austenite). Behavior in plain carbon-steel
As austenite cools, the carbon diffuses out of the austenite and forms carbon-rich iron-carbide (cementite) and leaves
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Bainite
This was the case despite the fact that a complete austenite to pearlite transformation could be achieved at higher temperatures where the austenite was the plastic deformation of the adjacent austenite.
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Martensite
For a eutectoid steel (0.76% C), between 6 and 10% of austenite, called retained austenite, will remain. austenite for a 1.4% carbon steel.
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Martempering
The metal part is then removed from the bath and cooled in air to room temperature to permit the austenite to transform to martensite. In martempering, steel is heated to above the critical range to make it all austenite.
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Cementite
In carbon steel, cementite precipitates from austenite as austenite transforms to ferrite on slow cooling, or from martensite during tempering. An intimate mixture with ferrite, the other product of austenite, forms a lamellar structure called pearlite.
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Ledeburite
The eutectic mixture of austenite and cementite is 4.3% carbon, Fe3C:2Fe, with a melting point of 1147 °C. The pearlite results from the eutectoidal decay of the austenite that comes from the ledeburite-I at 723 °C.
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Austenite grain growth model of 38MnSiVS bearing microalloyed forging steel
Austenite grain growth model of 38MnSiVS bearing microalloyed forging steel: CAO Yun-fei, YU Wei, LIU Min, JIANG Rui, WANG Chun: Engineering Research Institute, University of Science and Technology, Beijing 100083, China
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Effect of metastable austenite on mechanical propertyand ... - ResearchGate
A novel multi-step heat treatment process was performed for .2C-5Mn steel, and the effect of intercritical annealing (IA) durations on the microstructure evolution and mechanical properties was ...
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475 °C embrittlement
During deformation, straight slip bands form in the austenite grains and propagate to the ferrite-austenite grain boundaries, assisting in the slipping in ferrite compared to the austenite.
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(PDF) Phase-field modeling of ferrite morphology in austenite-to ...
The morphology of proeutectoid ferrite in steels has attracted much attention in view of its close correlation with the fundamentals about the phase transformation theory as well as its potential ...
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Deformed austenite continuous cooling transformation in Nb microalloyed ...
Deformed austenite continuous cooling transformation in Nb microalloyed anti-seismic rebar: CAO Jian-chun 1, YE Ya-ping 1, YIN Shu-biao 2, ZHANG Wei-qiang 3, CHEN Wei 3, ZHANG Yong-qing 4: 1. School of Materials Science and Engineering, Kunming University of Technology, Kuming 650093, Yunnan, China 2. College of Metallurgy and Energy Engineering, Kunming University of Technology, Kuming 650093 ...
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Austempered Ductile Iron
Rather, the austempering process forms acicular ferrite and austenite. The latter of these has a face-centered cubic (FCC) structure. Some of the austenite phase mentioned above is mechanically metastable and will form martensite when subjected to high stress.
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High-strength low-alloy steel
Austenite grains are elongated by rolling. Deformation bands might present within the band as well. Ferrite nucleates and austenite are further work-hardened.
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TRIP steel
Many automotive TRIP steels possess retained austenite within a ferrite matrix, which may also contain hard phases like bainite and martensite. Metallurgical properties
During plastic deformation and straining, the retained austenite phase is transformed into martensite.
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