王金南,付鹏飞,毛智勇,王西昌

• 1:北京航空制造工程研究所高能束流加工技术重点实验室

摘要(Abstract)：

通过调节扫描轨迹、束流数量、束流能量比、束流间距等参数,进行了316不锈钢电子束焊接同步预热/缓冷复合工艺研究,获得了成形良好的焊接接头。利用光学显微镜、材料试验机、扫描电子显微镜等测试分析了电子束焊接热处理复合接头的显微组织、显微硬度、拉伸性能、拉伸断口。结果表明,与常规电子束焊接相比,电子束焊接热处理复合接头焊缝区的析出相细小均匀,焊缝区及热影响区显的微硬度分布均匀,焊接热处理复合接头抗拉强度提高了6%;接头的微观断口具有韧性断裂特征,断口为典型韧窝断口;电子束焊接热处理复合加工有助于提高焊缝质量和焊缝的力学性能。

关键词(KeyWords)： 不锈钢;电子束焊接;热处理;组织性能

Abstract:

Keywords:

基金项目(Foundation): 航空科学基金(2010ZE25006)

作者(Author): 王金南,付鹏飞,毛智勇,王西昌

DOI: 10.13289/j.issn.1009-6264.2016.05.026

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