Microstructure and Properties of Joint Interface of Semisolid Stirring Brazing of Composites

被引：13

作者：

Xu, Huibin ^{[1
,2
]}

Zhou, Bofang ^{[1
]}

Du, Changhua ^{[1
]}

Luo, Quanxiang ^{[1
]}

Chen, Hongyou ^{[1
]}

机构：

[1] Chongqing Univ Technol, Sch Mat Sci & Engn, Chongqing 400054, Peoples R China

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

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2012年 / 28卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Composites; Brazing; Stirring; Oxide; SICP/A356; COMPOSITES; ALLOY; METAL;

D O I：

10.1016/S1005-0302(12)60187-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stirring assisted brazing of SiCp/A356 composites in air was investigated. A stirring was applied on one of the samples to be bonded at 455 degrees C during brazing. The filler metal was extruded and impacted intensively on the two surfaces of the base materials during stirring. It can be found that oxide film on the surface of the composites can be disrupted and removed through the observation by scanning electron microscopy (SEM). The metallurgical bonds formed between the filler metal and the base materials. However, continuous residual oxide film was found at bottom joint interface, which limited the lift of joint strength. A stirring was applied once more after the samples were continuously heated to 470 and 500 degrees C, respectively. At this tithe, residual oxide film after the first of stirring can be broken by Once more stirring. The bonds are mainly composed of a new alloy, which have a higher content of aluminum and are free of continuous oxide film, showing higher shear strength of 113 MPa than that of the base materials.

引用

页码：1163 / 1168

页数：6

共 17 条

[1] Application of mushy/semi-solid joining - Part 3
Kiuchi, M
Yanagimoto, J
Sugiyama, S
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 140 : 163 - 166
[2] Mushy/semi-solid metal forming technology - Present and future
Kiuchi, M
Kopp, R
[J]. CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2002, 51 (02) : 653 - 670
[3] Kiuchi M, 1998, CIRP ANNALS 1998 - MANUFACTURING TECHNOLOGY, VOL 47, NO 1, V47, P227
[4] Interfacial strength and structure of stainless steel-semi-solid aluminum alloy clad metal
Liu, HW
Guo, C
Cheng, Y
Liu, XF
Shao, GJ
[J]. MATERIALS LETTERS, 2006, 60 (02) : 180 - 184
[5] Liu LM, 2001, MAT SCI ENG A-STRUCT, V315, P103
[6] Microstructural evolution and mechanical properties of semisolid stir welded zinc AG40A die cast alloy
Narimannezhad, A.
Aashuri, H.
Kokabi, A. H.
Khosravani, A.
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (08) : 4112 - 4121
[7] Semisolid Joining of Zinc AG40A Alloy by Partial Remelting and Mechanical Stirring
Narimannezhad, A.
Aashuri, H.
Kokabi, A. H.
Khosravani, A.
Kiani, M.
Foroughi, A.
[J]. SEMI-SOLID PROCESSING OF ALLOYS AND COMPOSITES X, 2008, 141-143 : 225 - 230
[8] Shalchi B, 2006, SOLID STATE PHENOM, V116-117, P397
[9] Shirota T., 2003, J JPN SOC TECHNOL PL, V44, P25
[10] Shirota T, 2000, J JSTP, V41, P1221

← 1 2 →