Laser brazing of Inconel® 718 using Ag and Cu-Ag nanopastes as brazing materials

被引：35

作者：

Bridges, Denzel ^{[1
]}

Ma, Chaoli ^{[1
,2
]}

Palmer, Zane ^{[3
]}

Wang, Shutong ^{[1
]}

Feng, Zhili ^{[4
]}

Hu, Anming ^{[1
,5
]}

机构：

[1] Univ Tennessee, Dept Mech Aerosp & Biomed Engn, Knoxville, TN 37996 USA

[2] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China

[3] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[5] Beijing Univ Technol, Inst Laser Engn, 100 Pingle Yuan, Beijing 100124, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2017年 / 249卷

基金：

美国国家科学基金会;

关键词：

Brazing; Laser; Inconel; Nanopaste; Nanojoining; Core-shell; LOW-TEMPERATURE; NANOWIRE; NANOPARTICLE; NICKEL; PASTE;

D O I：

10.1016/j.jmatprotec.2017.06.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ag nanopastes composed of Ag nanoparticles or Ag nanowires and Cu-Ag nanopastes with Cu-Ag core-shell nanowires are used as a new brazing material for Inconel (R) 718. Ag nanoparticles or Ag nanowires are further added to the core-shell paste to adjust to a eutectic composition. Microstructural analysis of the brazed joints was carried out with EDS and XRD. High bonding strength (> 100 MPa) was obtained with both Ag and Cu-Ag nanopastes. It was concluded that the Cu-Ag nanopastes form stronger braze joints than the BAg-8 brazing alloy as a result of Hall-Petch strengthening. It has also been concluded that the addition Ag nanoparticles or Ag nanowires to the Cu-Ag core-shell nanowire paste have a significant impact on the bonding strength and fracture of the Cu-Ag joints.

引用

页码：313 / 324

页数：12

共 35 条

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[2]

[Anonymous], 2016, DVS BERICHTE

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