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요약정보
Cu中间层对GH4099与Mo-Cu合金HIP扩散焊接头的影响 / Effect of Cu Interlayer on GH4099 and Mo-Cu Joint of HIP Diffusion Bonding
Resource Type
Academic Journal
Authors
王铁军
;
张龙戈
;
车洪艳
;
董浩
;
郑天明
;
周双双
;
王学远
;
WANG Tiejun
;
ZHANG Longge
;
CHE Hongyan
;
DONG Hao
;
ZHENG Tianming
;
ZHOU Shuangshuang
;
WANG Xueyuan
Source
材料导报 / Materials Review
. 35(2):98-102
Subject
中间层
扩散连接
热等静压
物理气相沉积
Language
Chinese
ISSN
1005-023X
Online Access
Scopus
Find it @ DONGA
초록
Mo-Cu合金作为一种新型的高温合金材料,既具有高熔点、低膨胀系数等性能,又具备高延展性、高导电导热性等特性,可应用到航空航天、核工业、电子等诸多领域.如何将Mo-Cu合金与耐高温、抗氧化的GH4099高温合金连接制成复合构件,从而避免钼合金高温抗氧化能力较差、易产生低温脆性的缺点,是其作为高温结构材料能够更广泛应用而亟待解决的问题.常规焊接方法难以实现难熔合金的有效焊接,用热等静压工艺可以避免在焊接区域内再结晶,实现对形变速率敏感的材料的大面积连接.鉴于此,本工作采用不同厚度Cu中间层对GH4099/Mo-Cu HIP扩散焊接头质量进行了对比分析,利用PVD/箔纸制备Cu中间层,在一定的工艺参数下对扩散偶进行连接.对不同厚度Cu中间层焊后接头的界面元素迁移、扩散层演化和断口形貌进行了SEM-EDS表征,并用硬度、拉伸和剪切实验测试了接头的力学性能.结果表明:Cu中间层有利于扩散偶的连接,PVD镀层作中间层优于箔纸.
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