聂义宏,白亚冠,金嘉瑜,王宝忠

• 1:中国第一重型机械股份公司
• 2:黑龙江省高端核电装备智能制造重点实验室
• 3:天津重型装备工程研究有限公司

摘要(Abstract)：

采用光学显微镜、扫描电镜和电子万能试验机等研究了时效温度对改进型Inconel 617合金的组织与性能的影响。结果表明:经过1180℃的固溶处理后,合金组织中除个别尺寸较大的一次MC型碳化物外无其它析出相存在。时效处理温度对γ′相、M_(23)C_6和M_6C型碳化物的尺寸、位置、数量、形态等有影响,在750℃时效处理后,合金的组织由晶内大量弥撒析出的小于10 nm的γ′相+晶界少量颗粒状M_(23)C_6型碳化物组成。力学性能测试表明,经过750℃时效处理后,合金的强度和塑性匹配良好,冲击韧性高。因此可选择750℃为改进型Inconel 617合金锻件的时效处理温度。

关键词(KeyWords)： 改型Inconel 617;时效处理;组织;γ′相;碳化物;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家能源应用技术研究及工程示范项目(NY20150101-1)

作者(Author): 聂义宏,白亚冠,金嘉瑜,王宝忠

DOI: 10.13289/j.issn.1009-6264.2020-0308

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