Achieving High-Quality Al/Steel Joint with Ultrastrong Interface

被引：48

作者：

Huang, Yongxian ^{[1
]}

Wan, Long ^{[1
]}

Si, Xiaoqing ^{[1
]}

Huang, Tifang ^{[1
]}

Meng, Xiangchen ^{[1
]}

Xie, Yuming ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2019年 / 50A卷 / 01期

基金：

中国国家自然科学基金;

关键词：

MECHANICAL-PROPERTIES; ALUMINUM-ALLOY; FRICTION; STEEL; MICROSTRUCTURE; STATE; AL;

D O I：

10.1007/s11661-018-5006-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An enlarged pin head with circumferential notches for friction stir lap welding was proposed to achieve Al/steel joint with ultrastrong interface. The hook defect was eliminated. The effective interfacial width of 7.5mm was achieved. The local silicon enrichment suppressed the growth of intermetallic compounds, which was attributed to the formation of an ultrathin interfacial layer containing a Fe4Al13 layer, a single Fe2Al5 layer, a bright Fe-rich layer, and a chaotic layer. The maximum tensile shear strength reached up to 442N/mm.

引用

页码：295 / 299

页数：5

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