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Fracture behavior and mechanical strength of sandwich structure solder joints with Cu–Ni(P) coating during thermal aging | |
Xu, Tao1; Hu, Xiaowu1; Li, Jiayin1; Li, Qinglin2![]() | |
2020-03 | |
发表期刊 | Journal of Materials Science: Materials in Electronics
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ISSN | 09574522 |
卷号 | 31期号:5页码:3876-3889 |
摘要 | Coating at the interface of solder joint has a great impact on the growth behavior of intermetallic compounds (IMCs) and the mechanical properties. In this study, the sandwich structure samples of Cu/Sn3.0Ag0.5Cu/Cu solder joints with coatings of Ni(P) monolayer and dual Cu–Ni(P) layers on Cu substrate were designed to conduct the shear test. The mechanical strength, fracture modes, and fractographic morphologies of Sn3.0Ag0.5Cu/Cu, Sn3.0Ag0.5Cu/Ni(P)–Cu, and Sn3.0Ag0.5Cu/Cu–Ni(P)–Cu solder joints reflowed at 280 °C for 10 min and then aged at 150 °C for up to 360 h were investigated. Experimental results show that the mechanical strength of Sn3.0Ag0.5Cu/Cu solder joints firstly increased because of the pinning effect of IMC, and then decreased due to the brittleness of excessive growth of IMC during solid-state aging processes. The Sn3.0Ag0.5Cu/Cu solder joints presented ductile fracture, mixed fracture, and brittle fracture modes during shear testing processes. The shear strength of Sn3.0Ag0.5Cu/Ni(P)–Cu solder joints decreased to about 17 MPa after 120 h thermal aging. At the same time, the shear failure mode of Sn3.0Ag0.5Cu/Ni(P)–Cu solder joints changed from the ductile dominant fracture to the brittle dominant fracture. The shear strength of Sn3.0Ag0.5Cu/Cu–Ni(P)–Cu solder joints remained approximate 21 MPa and the fractured position always occurred inside the IMC layer regardless of aging time. © 2020, Springer Science+Business Media, LLC, part of Springer Nature. |
关键词 | Coatings Fracture mechanics Fracture testing Sandwich structures Thermal aging Fractographic Fracture behavior Growth behavior Mixed fractures Pinning effects Shear failure mode Solder joints Solid-state aging |
DOI | 10.1007/s10854-020-02933-7 |
收录类别 | EI ; SCIE |
语种 | 英语 |
WOS研究方向 | Engineering ; Materials Science ; Physics |
WOS类目 | Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000514844300015 |
出版者 | Springer |
EI入藏号 | 20200408086335 |
EI主题词 | Ductile fracture |
EI分类号 | 813.2 Coating Materials - 931.1 Mechanics - 951 Materials Science |
来源库 | Compendex |
分类代码 | 813.2 Coating Materials - 931.1 Mechanics - 951 Materials Science |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/115362 |
专题 | 材料科学与工程学院 |
通讯作者 | Hu, Xiaowu |
作者单位 | 1.Nanchang Univ, Sch Mech & Elect Engn, Key Lab Robot & Welding Automation Jiangxi Prov, Nanchang 330031, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Tao,Hu, Xiaowu,Li, Jiayin,et al. Fracture behavior and mechanical strength of sandwich structure solder joints with Cu–Ni(P) coating during thermal aging[J]. Journal of Materials Science: Materials in Electronics,2020,31(5):3876-3889. |
APA | Xu, Tao,Hu, Xiaowu,Li, Jiayin,&Li, Qinglin.(2020).Fracture behavior and mechanical strength of sandwich structure solder joints with Cu–Ni(P) coating during thermal aging.Journal of Materials Science: Materials in Electronics,31(5),3876-3889. |
MLA | Xu, Tao,et al."Fracture behavior and mechanical strength of sandwich structure solder joints with Cu–Ni(P) coating during thermal aging".Journal of Materials Science: Materials in Electronics 31.5(2020):3876-3889. |
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