时效温度对 18Ni (200) 马氏体时效钢微观结构演变和机械性能的影响

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: A Pub Date : 2024-11-10 DOI:10.1016/j.msea.2024.147497

Yujian Zhang, Yanmei Li, Xiangtao Deng

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引用次数: 0

摘要

在此，我们使用透射电子显微镜（TEM）、电子反向散射衍射（EBSD）和 X 射线衍射仪（XRD）研究了不同时效温度对 18Ni (200) 马氏体时效钢中反转奥氏体和析出物的影响及其低温韧性和强度的演变规律。研究发现，510 °C的时效可提高-196 °C的低温韧性并达到峰值强度，这归因于显著的时效强化效应和反转奥氏体。此外，该研究还调查了反转奥氏体形成和高稳定性的因素，并定量评估了不同时效温度下时效强化、位错强化和晶界强化对屈服强度的贡献。

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Effect of aging temperature on the microstructural evolution and mechanical properties of 18Ni (200) maraging steel

Herein, we used transmission electron microscopy (TEM), electron backscattering diffraction (EBSD), and X-ray diffractometry (XRD) to investigate the effects of different aging temperatures on reversed austenite and precipitates in 18Ni (200) maraging steel, as well as their evolving patterns of cryogenic toughness and strength. Aging at 510 °C was found to enhance cryogenic toughness at −196 °C and deliver peak strength, which is attributable to the significant aging-strengthening effect and the reversed austenite. Furthermore, this study investigated the factors that contribute to the formation and high stability of reversed austenite and quantitatively assessed the contributions of aging strengthening, dislocation strengthening, and grain-boundary strengthening to yield strength at various aging temperatures.

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来源期刊

Materials Science and Engineering: A 工程技术-材料科学：综合

CiteScore

11.50

自引率

15.60%

发文量

1811

审稿时长

31 days

期刊介绍： Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.