Results 191 to 200 of about 2,506 (247)

Correlation between mechanical stability and hardness of austenite in martensite/austenite mixtures

Materials Science and Engineering: A, 2021
Abstract The hardness of austenite in Fe−1.5%Mn−(0.44–1.46)%C steels with microstructures consisting of austenite and martensite was estimated by an extrapolation procedure. The procedure involved heat treatments to obtain different fractions of athermal martensite. For each carbon concentration, the variation of hardness with martensite fraction was
Javad Mola, Eun Jung Seo, Lawrence Cho
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Stabilization of Austenite by Hydrogen

Nature, 1960
ATTEMPTS to study the possible effects of hydrogen on the austentite–martensite transformation in steels have always to reckon with the difficulty of retaining adequate amounts of hydrogen in them, regardless of the amounts initially present. The austenitizing and heat treatment of steels are generally carried out at virtually atmospheric pressures or ...
E. G. RAMACHANDRAN, C. DASARATHY
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The thermal stabilization of austenite

Acta Metallurgica, 1966
Abstract It is proposed that the thermal stabilization of austenite occurs because of the pinning of martensite nucleus-austenite matrix interfaces by segregated carbon. The kinetics of thermal stabilization implicit in this model are quantitatively developed and compared with reported austenite stabilization behavior.
K.R Kinsman, J.C Shyne
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Mechanical Stability of Austenite

2023
A key design consideration in advanced highs strength steels is to take advantage of the transformation-induced plasticity (TRIP) effect arising from the deformation-induced martensitic transformation of metastable austenite, which is strongly related to the austenite mechanical stability. This thesis investigates how the austenite mechanical stability,
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The nature of thermal stabilization of austenite

Metal Science and Heat Treatment, 1972
Upon thermal stabilization of austenite the yield stress is increased while the tensile strength remains unchanged. This is associated with the lowering of the MS point. Increasing the incipient shear strength decreases the MS point, in accordance with the requirement for the enhancement of the difference between the free energies of austenite and ...
B. G. Serebrennikova, M. E. Blanter
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