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首页> 外文期刊>Journal of Materials Engineering and Performance >Comparative Study of Hardening Mechanisms During Aging of a 304 Stainless Steel Containing α'-Martensite
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Comparative Study of Hardening Mechanisms During Aging of a 304 Stainless Steel Containing α'-Martensite

机译：含α'-马氏体的304不锈钢时效硬化机理的比较研究

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摘要

Strain aging and hardening behaviors of a 304 stainless steel containing deformation-induced martensite were investigated by examining mechanical properties and microstructural evolution for different aging temperature and time. Introduced age hardening mechanisms of a cold rolled 304 stainless steel were the additional formation of α'-martensite, hardening of α'-martensite, and hardening of deformed austenite. The increased amount of α'-martensite at an aging temperature of 450℃ confirmed the additional formation of α'-martensite as a hardening mechanism in a cold rolled 304 stainless steel. Additionally, the increased hardness in both α'-martensite and austenite phases with aging temperature proved that hardening of both α'-martensite and austenite phases would be effective as hardening mechanisms in cold rolled and aged 304 stainless steels. The results suggested that among hardening mechanisms, hardening of an α'-martensite phase, including the diffusion of interstitial solute carbon atoms to dislocations and the precipitation of fine carbide particles would become a major hardening mechanism during aging of cold rolled 304 stainless steels.
机译：通过研究不同时效温度和时间下的力学性能和微观组织演变，研究了含有变形诱发马氏体的304不锈钢的应变时效和硬化行为。冷轧304不锈钢的时效硬化机理是α'-马氏体的额外形成，α'-马氏体的硬化和变形奥氏体的硬化。在450℃的时效温度下，α'-马氏体含量的增加证实了在冷轧304不锈钢中作为硬化机制的α'-马氏体的额外形成。此外，随着时效温度的升高，α'-马氏体相和奥氏体相的硬度均增加，这表明α'-马氏体相和奥氏体相的强化将作为冷轧和时效304不锈钢的强化机制是有效的。结果表明，在硬化机制中，α'-马氏体相的硬化（包括间隙溶质碳原子扩散到位错和细小的碳化物颗粒的沉淀）将成为冷轧304不锈钢时效过程中的主要硬化机制。

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