孟立鑫,鲁辉虎,李文琪,郭红魁,梁伟

• 1:太原理工大学材料科学与工程学院
• 2:中北大学机械工程学院

摘要(Abstract)：

研究了初始组织状态对27Cr-4Mo-2Ni钢中sigma相析出行为及力学性能的影响。结果表明:固溶态试样经800℃时效处理后sigma相沿chi相在晶界析出以及少量晶内析出,热轧变形及冷轧时效过程产生的亚结构,以及TiN颗粒周围的高应变区域为sigma相析出提供了额外的形核质点,显著加速了sigma相析出,而冷轧变形对sigma相析出的加速作用较热轧变形更加明显。Sigma相析出明显提高试验钢的硬度,但严重恶化其塑性。

关键词(KeyWords)： 超级铁素体不锈钢;Sigma相;轧制变形

Abstract:

Keywords:

基金项目(Foundation): 山西省重点研发计划(201603D421026);; 山西省研究生教育创新项目(2019BY043)

作者(Author): 孟立鑫,鲁辉虎,李文琪,郭红魁,梁伟

DOI: 10.13289/j.issn.1009-6264.2020-0287

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