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Abstract:
采用光学显微镜和场发射扫描电镜观察了TC4钛合金激光焊接接头的显微组织,测量了接头焊缝中心到母材的显微硬度.结果表明,母材由α相和其相界上断续分布的粒状β相组成.焊接接头组织由粗大等轴晶区、柱状晶区、细等轴晶区和热影响区过热组织组成.粗大等轴晶区组织形态有层片状α+β、魏氏体α和网篮状α+β3种,其显微硬度略低于柱状晶区和细等轴晶区,但比母材高;柱状晶区和细等轴晶区组织为针状马氏体,柱状晶区显微硬度相对较高.热影响区显微硬度与母材相差不大.
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材料热处理学报
ISSN: 1009-6264
Year: 2014
Issue: 10
Volume: 35
Page: 70-74
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 9
Chinese Cited Count:
30 Days PV: 6
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