张晶晶

• 1:太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室
• 2:山西太钢不锈钢股份有限公司技术中心

摘要(Abstract)：

采用光学显微镜、扫描电镜和电子探针研究了时效温度对SUS444超纯铁素体不锈钢的显微组织及冲击韧性的影响。结果表明:SUS444不锈钢经850℃时效处理10 min后,室温冲击吸收能量从4.4 J提高至55 J,韧脆转变温度从20℃以上降低至-5℃。电子探针分析表明TiN相时效处理后转变为TiN、NbC和贫Nb相的三层复合结构,提高了其与基体界面的结合强度,导致实验钢冲击韧性的大幅提高。

关键词(KeyWords)： 超纯铁素体不锈钢;冲击韧性;电子探针;界面强度

Abstract:

Keywords:

基金项目(Foundation): 山西省第二批青年拔尖人才支持计划(晋组通字[2014] 22号)

作者(Author): 张晶晶

DOI: 10.13289/j.issn.1009-6264.2019-0256

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