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金属间化合物Ag3Sn对Sn3.8Ag0.7Cu焊料合金拉伸性能的影响
Alternative TitleEFFECT OF INTERMETALLICS Ag3Sn ON THE TENSILE PROPERTY OF Sn3.8Ag0.7Cu SOLDER ALLOY
祝清省; 张黎; 王中光; 吴世丁; 尚建库
2007
Source Publication金属学报
ISSN0412-1961
Volume43.0Issue:1.0Pages:41-46
Abstract利用不同凝固速率和等通道挤压法制备不同组织结构的Sn3.8Ag0.7Cu合金,使其包含不同形貌、大小及分布的Ag3Sn金属间化合物;拉伸曲线的比较分析和变形后组织的电镜观察表明,大的针状化合物对合金起着纤维增强的作用,但自身脆性断裂造成空洞,降低了材料的塑性;微细颗粒状化合物起着弥散强化作用,分布在小的等轴晶粒晶界上的化合物颗粒能够阻碍晶界的滑动,起到增强的作用.
Other AbstractSn3.8Ag0.7Cu alloys containing Ag3Sn intermetallic compound (IMC) with different morphologies, sizes and distributions were prepared by controlling cooling rate during solidification and equal channel angle pressing process (ECAP). The relation between mechanical property of the alloys and IMC phase was investigated. The tensile stress-strain curves of the alloys with different microstructures were compared and the deformed microstructures were observed by SEM and TEM. While the large needle-like Ag3Sn was found to provide fiber-strengthening effect to the alloy, its brittle fracture promoted void nucleation, resulting in a deterioration of tensile elongation. The fine particles of Ag3Sn produced by ECAP enhanced dispersion strengthening by blocking the dislocation motion. The particles on the boundaries of fine equiaxed Sn grains inhibited the boundary sliding, leading to improvement of the tensile strength.
Keyword无铅焊料 Sn3.8Ag0.7Cu合金 金属间化合物 等通道角挤压 力学性能
Indexed ByCSCD
Language中文
CSCD IDCSCD:2834214
Citation statistics
Cited Times:5[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/148103
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
祝清省,张黎,王中光,等. 金属间化合物Ag3Sn对Sn3.8Ag0.7Cu焊料合金拉伸性能的影响[J]. 金属学报,2007,43.0(1.0):41-46.
APA 祝清省,张黎,王中光,吴世丁,&尚建库.(2007).金属间化合物Ag3Sn对Sn3.8Ag0.7Cu焊料合金拉伸性能的影响.金属学报,43.0(1.0),41-46.
MLA 祝清省,et al."金属间化合物Ag3Sn对Sn3.8Ag0.7Cu焊料合金拉伸性能的影响".金属学报 43.0.1.0(2007):41-46.
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