标题:Amorphization of Al-Cu-Mg alloys by friction stir welding
作者:Feng, K.; Liu, P.; Xia, C.; Cao, M.; Jing, C.; Zhang, G.
作者机构:[Feng, K.; Liu, P.; Jing, C.; Zhang, G.] Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Shandong, Peoples R China.; [Xia, C.] Jiangsu Univ 更多
通讯作者:Liu, P
通讯作者地址:[Liu, P]Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Shandong, Peoples R China.
来源:KOVOVE MATERIALY-METALLIC MATERIALS
出版年:2017
卷:55
期:3
页码:169-173
DOI:10.4149/km_2017_3_169
关键词:friction stir welding; amorphous structure; transmission electron; microscopy; X-ray diffraction; microstructure
摘要:The microstructure and phase constituents in stir zone of friction stir weld for 2024-T4 aluminium alloys were observed and analysed by transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction analysis. Homogeneous amorphous structure in some area of the weld nugget zone was detected. The amorphous structure with halo pattern has a structure characteristic of the long-range disorder. X-ray diffraction analysis indicated that a diffuse scattering peak in the shape of steamed bun with amorphous characteristic exists in the degree scope of 15 degrees-29 degrees. Some influencing factors, such as higher temperature gradient, hydrostatic pressure and shear stress and strain, may induce the formation of amorphous structure in weld nugget zone of friction stir weld.
收录类别:SCIE
资源类型:期刊论文
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