The Significance of Retained Austenite in the High Strength and Plasticity of Medium Carbon Q&P Steel

IF 0.6 4区物理与天体物理 Q4 MECHANICS

Doklady Physics Pub Date : 2024-02-20 DOI:10.1134/S1028335823100063

R. V. Mishnev, Yu. I. Borisova, M. N. Erokhin, S. M. Gaidar, R. O. Kaibyshev

引用次数: 0

Abstract

The Fe–0.44%C–1.8%Si–1.3%Mn–0.82%Cr–0.28%Mo steel treated by the quenching–partitioning process showed a product of strength and elongation of 30 GPa % with yield stress of 1350 MPa. Such a combination of high ultimate tensile strength and good ductility is attributed to a high portion of retained austenite (≥20%) transforming to martensite under tension. The high yield stress is provided by carbon supersaturation of austenite and a high dislocation density in this phase.

Abstract Image

查看原文本刊更多论文

残余奥氏体在中碳 Q&P 钢的高强度和塑性中的意义

摘要采用淬火-分层工艺处理的 Fe-0.44%C-1.8%Si-1.3%Mn-0.82%Cr-0.28%Mo 钢的强度和伸长率乘积为 30 GPa %，屈服应力为 1350 MPa。这种高极限抗拉强度和良好延展性的组合归功于高比例的残余奥氏体（≥20%）在拉伸过程中转变为马氏体。奥氏体的碳过饱和以及该相中的高位错密度提供了高屈服应力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Doklady Physics 物理-力学

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

4-8 weeks

期刊介绍： Doklady Physics is a journal that publishes new research in physics of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.