Strengthening and toughening strategies of weld metal for in-situ nanoparticle reinforced tin bronze alloy

被引：2

作者：

Chen, X. H. ^{[1
]}

Ma, Y. F. ^{[1
]}

Cheng, Y. J. ^{[2
]}

Wang, Z. D. ^{[1
,3
]}

Yang, M. ^{[3
]}

Jiang, W. W. ^{[1
]}

Cao, Y. D. ^{[4
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, 30 Xueyuan Rd, Beijing 100083, Peoples R China

[2] Gaona Aero Mat Co Ltd, Cent Iron & Steel Res Inst, Beijing, Peoples R China

[3] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing, Peoples R China

[4] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing, Peoples R China

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2021年 / 26卷 / 04期

关键词：

Tin bronze; weld metal; nano-structured; mechanical property; MECHANICAL-PROPERTIES; MICROSTRUCTURES; PARTICLES; DUCTILITY; GRAIN; FLUX;

D O I：

10.1080/13621718.2021.1907024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As-cast in-situ nanoparticle reinforced CuSn10Zn2Fe1.5Co0.5 (wt-%) alloy was selected as base metal (BM) and filler for welding. Butt joints were obtained by tungsten inert gas (TIG) welding. Microstructure of weld metal was characterised. Nanoparticles with an average diameter of about 5 nm are uniformly dispersed in the primary copper matrix in size of micro or nano scales for weld metal. A large number of nano grains with size of about 20 nm can be found in the weld metal as well. Mechanical properties of weld metal were comparable to those of heat-treated BM. Strengthening and toughening strategies for the weld metal were discussed through fabricating in-situ nanoparticles and nano grains in the weld metal.

引用

页码：309 / 315

页数：7

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