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首页> 外文期刊>Materials Research Letters >A Comparative Analysis of Austenite-to-Martensite and Austenite-to-Bainite Phase Transformation Kinetics in Steels
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A Comparative Analysis of Austenite-to-Martensite and Austenite-to-Bainite Phase Transformation Kinetics in Steels

机译：钢中奥氏体-马氏体相和奥氏体-贝氏体相变动力学的比较分析

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摘要

This paper presents a comparison of the macroscopic transformation strain evolution as a function of the bainite and martensite phase fractions in steels. Specifically, the evolution of anisotropic strain with phase fraction follows a linear trend for the martensitic transformation due to continuous stress-induced variant selection. In the case of bainitic transformation, the anisotropic strain evolves non-linearly owing to diffusion, minimizing the distortion around the bainitic sheaves and further promoting stress-induced variant selection at the early stages of the bainitic phase transformation. However, this effectiveness is reduced when the bainitic sheaves start constricting the growth of each other.
机译：本文比较了钢中宏观相变应变演变与贝氏体和马氏体相分数的关系。具体而言，由于连续应力诱导的变量选择，具有相分数的各向异性应变的演化遵循马氏体转变的线性趋势。在贝氏体转变的情况下，各向异性应变由于扩散而非线性地发展，从而最小化贝氏体滑轮周围的变形，并进一步促进了贝氏体相变早期阶段应力诱导的变体选择。但是，当贝氏体滑轮开始限制彼此的生长时，这种有效性会降低。

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