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应变强化技术被应用于奥氏体不锈钢材料制造的低温压力容器,其核心是在加工过程中发生的变形促使部分奥氏体组织转变为马氏体组织,最终提高钢材的性能。而材料的化学元素决定着马氏体转变温度、层错能以及奥氏体的稳定性。本文从化学元素的基本作用出发,探讨其对奥氏体不锈钢冷加工过程中板材的应变诱导马氏体转变的影响。结论是:化学元素对奥氏体不锈钢应变强化过程中的马氏体转变起着至关重要的作用,其中C、Cr和Ni的影响最大;同时,化学元素影响着马氏体转变的起止温度,是奥氏体不锈钢在室温下进行形变马氏体相变的重要条件。
Strain hardening technology is applied to the low temperature pressure vessel made of austenitic stainless steel. The core of the strain hardening process is to transform part of the austenite into martensite to improve the properties of the steel. The chemical elements of the material determine the martensitic transformation temperature, stacking fault energy and the stability of the austenite. In this paper, based on the basic role of chemical elements, the effect of the element on strain-induced martensitic transformation of plate during cold working of austenitic stainless steel was discussed. The conclusion is that the chemical elements play a crucial role in the martensitic transformation during the strain hardening of austenitic stainless steel, of which C, Cr and Ni have the greatest effect. Meanwhile, the chemical elements influence the onset and end of the martensitic transformation , Is austenitic stainless steel deformation martensitic transformation at room temperature an important condition.