LASER ABLATION INDUCED TOUGHNESS ENHANCEMENT IN TWIN CRYSTAL COPPER
Free surfaces and inner defects (such as grain boundary) facilitate initiating of melting.The grain boundary can affect the toughness of polycrystal Copper.In this paper,the melting copper nanoparticles have been studied by a model that combines two-temperature and molecular dynamics methods.After laser ablation,a 45-degree grain orientation presents an unusual toughness behaviour.The higher failure strain of the twin crystal copper with laser ablation than it has not.It can be found that the dislocations and grain boundary interaction paly the main role.It gives a new view that the laser can enhance the toughness of Cu crystal.
Paper format SPAWDA Equation and table Reference
Xin HUANG Hai-lin DENG Xia-wei LI Zhi-hong ZHOU Xiao-bao TIAN
Failure Mechanics & Engineering Disaster Prevention and Mitigation, Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China 2 Department of Mechanics, Sichuan University, Chengdu 610065, China
国际会议
石家庄
英文
482-485
2019-11-01（万方平台首次上网日期，不代表论文的发表时间）