当前位置: X-MOL 学术Vacuum › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Achieving both high conductivity and reliable high strength for W–Cu composite alloys using spherical initial powders
Vacuum ( IF 4 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.vacuum.2020.109620
Longchao Zhuo , Junlu Zhang , Qiqi Zhang , Hailiang Wang , Zhao Zhao , Qiuyu Chen , Shuhua Liang , Jintao Xu , Aiying Xi

Abstract By virtue of spherical initial powders, novel W–Cu composite alloys of W60Cu40 and W70Cu30 have been fabricated by successive processes of powder mixing, cold pressing, sintering and infiltration under hydrogen atmosphere in this work. The phase composition and distribution, hardness, electrical conductivity and tensile behavior of the resultant composite alloys were investigated. Results revealed that the resultant W–Cu composite alloys exhibited excellent hardness improved by 7.3% (4.6%) and remarkably improved electrical conductivity by 23.3% (23.8%), compared with present commercial alloys. Further tensile tests revealed the superior strength of 423 MPa (485 MPa) with reliable strain of 8.8% (7.6%), which can be ascribed to the homogenous structure with alternate soft/conductive Cu and hard W phases free from blind holes.

中文翻译:

使用球形初始粉末实现 W-Cu 复合合金的高导电性和可靠的高强度

摘要 本研究利用球形初始粉末,通过粉末混合、冷压、烧结和氢气氛渗透等连续工艺制备了W60Cu40和W70Cu30新型W-Cu复合合金。研究了所得复合合金的相组成和分布、硬度、电导率和拉伸行为。结果表明,与目前的商业合金相比,所得 W-Cu 复合合金的硬度提高了 7.3% (4.6%),电导率显着提高了 23.3% (23.8%)。进一步的拉伸测试显示出 423 MPa (485 MPa) 的优异强度和 8.8% (7.6%) 的可靠应变,这可以归因于具有交替的软/导电 Cu 和硬 W 相的均匀结构,没有盲孔。
更新日期:2020-11-01
down
wechat
bug