Discussion of “an interpretation of the carbon redistribution process during aging of high-carbon martensite”

1993 ◽  
Vol 24 (11) ◽  
pp. 2585-2588 ◽  
Author(s):  
K. A. Taylor ◽  
J. B. Vander Sande ◽  
M. Cohen
Keyword(s):  
High Carbon ◽  
Carbon Redistribution ◽  
Carbon Martensite

scholarly journals Carbon Redistribution and Microstructural Evolution Study during Two-Stage Quenching and Partitioning Process of High-Strength Steels by Modeling

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2302 ◽  
Author(s):  
Yilin Wang ◽  
Huicheng Geng ◽  
Bin Zhu ◽  
Zijian Wang ◽  
Yisheng Zhang
Keyword(s):  
Retained Austenite ◽  
Volume Fraction ◽  
High Strength Steels ◽  
High Strength ◽  
Simulation Method ◽  
Low Carbon ◽  
Two Stage ◽  
Quenching And Partitioning ◽  
Carbon Redistribution ◽  
Carbon Martensite

The application of the quenching and partitioning (Q-P) process on advanced high-strength steels improves part ductility significantly with little decrease in strength. Moreover, the mechanical properties of high-strength steels can be further enhanced by the stepping-quenching-partitioning (S-Q-P) process. In this study, a two-stage quenching and partitioning (two-stage Q-P) process originating from the S-Q-P process of an advanced high-strength steel 30CrMnSi2Nb was analyzed by the simulation method, which consisted of two quenching processes and two partitioning processes. The carbon redistribution, interface migration, and phase transition during the two-stage Q-P process were investigated with different temperatures and partitioning times. The final microstructure of the material formed after the two-stage Q-P process was studied, as well as the volume fraction of the retained austenite. The simulation results indicate that a special microstructure can be obtained by appropriate parameters of the two-stage Q-P process. A mixed microstructure, characterized by alternating distribution of low carbon martensite laths, small-sized low-carbon martensite plates, retained austenite and high-carbon martensite plates, can be obtained. In addition, a peak value of the volume fraction of the stable retained austenite after the final quenching is obtained with proper partitioning time.

scholarly journals Tempering of a High Carbon Martensite

1972 ◽  
Vol 12 (2) ◽  
pp. 112-117 ◽  
Author(s):  
Y. OHMORI ◽  
A. T. DAVENPORT ◽  
R. W. K. HONEYCOMBE
Keyword(s):  
High Carbon ◽  
Carbon Martensite

Morphology, Nature and Formation Mechanism of Packet Plate Martensite in Medium and High Carbon Steels

2011 ◽  
Vol 121-126 ◽  
pp. 231-238 ◽  
Author(s):  
Yue Xin Ma ◽  
Yue Jun Liu ◽  
Long Wang ◽  
De Chang Zeng ◽  
Yu Hua Tan
Keyword(s):  
Twin Boundary ◽  
Misorientation Angle ◽  
Martensite Transformation ◽  
Lath Martensite ◽  
Carbon Steels ◽  
Plate Martensite ◽  
Low Carbon ◽  
High Carbon ◽  
Boundary Misorientation ◽  
Carbon Martensite

The microstructures of 11 kinds of commercial steels quenched from high temperature were deeply studied by optical microscope and canning election microscope. It was proved that packet martensite in medium and high carbon steels is not lath martensite, but rather packet plate martensite. Through the analysis of crystallography，it was found that four change rules of crystal orientation may arise during the process of martensite transformation. Two inner interfaces spontaneously formed were only discovered in martensite transformation process: small-angel boundary (misorientation angle is 0 ~ 10º) and twin boundary (misorientation angle is 70º32’). The former mainly appeared in low carbon martensite, and the latter principally formed in medium and high carbon martensite. The twin boundary packet mechanism in medium and high carbon steels has made in detail in this paper.

An atomic mechanism for the formation of nanotwins in high carbon martensite

2018 ◽  
Vol 767 ◽  
pp. 68-72 ◽  
Author(s):  
Yulin Chen ◽  
Dehai Ping ◽  
Yunzhi Wang ◽  
Xinqing Zhao
Keyword(s):  
High Carbon ◽  
Atomic Mechanism ◽  
Carbon Martensite

Acoustic emission during aging of high carbon martensite

1982 ◽  
Vol 16 (2) ◽  
pp. 135-138 ◽  
Author(s):  
Michael M. Shea ◽  
Douglas J. Harvey
Keyword(s):  
Acoustic Emission ◽  
High Carbon ◽  
Carbon Martensite

scholarly journals TRIP-assisted steels: cracking of high-carbon martensite

2006 ◽  
Vol 22 (6) ◽  
pp. 645-649 ◽  
Author(s):  
S. Chatterjee ◽  
H. K. D. H. Bhadeshia
Keyword(s):  
High Carbon ◽  
Carbon Martensite

Effect of deformation of austenite during HTMT on the stability of high-carbon martensite during low-temperature tempering

1978 ◽  
Vol 20 (3) ◽  
pp. 200-203
Author(s):  
M. L. Bernshtein ◽  
L. M. Kaputkina ◽  
S. D. Prokoshkin ◽  
S. V. Dobatkin
Keyword(s):  
Low Temperature ◽  
High Carbon ◽  
The Stability ◽  
Carbon Martensite
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