Microstructure of Ag-Sn-Cu-Bi-Ni alloy after oxidation
Ag-Sn-Cu-Bi-Ni alloy was internally oxidized in air.The phase constitution,surface morphology and microstructure evolution of the alloy after internal oxidation were analyzed by X-ray diffractometry,optical microscopy and scanning electron microscopy,respectively.The results show that the surface color of samples after internal oxidation is different from the different oxidation time and temperatures.The oxidation reaction firstly takes place on the grain boundaries.The microstructure developed on the initial stage of internal oxidation is fir-tree crystal texture.However,this texture structure disappears accompanied by grain growth and oxides forming during the prolonged oxidation.Finally,the oxide particles are uniformly dispersed in the silver matrix.
Ag-Sn-Cu-Bi-Ni alloy surface morphology microstructure internal oxidation
WU Chun-ping YI Dan-qing LI Jian WANG Bin XU Can-hui LU Xiao-dong
School of Materials Science and Engineering,Central South University,Changsha 410083,China Foshan Electrical Precision Alloy Co. Ltd,Foshan 528000,China
国际会议
2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)
长沙
英文
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）