Adhesion of voids to bimetal interfaces with non-uniform energies

IMR OpenIR

	Adhesion of voids to bimetal interfaces with non-uniform energies
	Zheng, Shijian; Shao, Shuai; Zhang, Jian; Wang, Yongqiang; Demkowicz, Michael J.; Beyerlein, Irene J.; Mara, Nathan A.; sjzheng@imr.ac.cn
	2015
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	5 页码:-
摘要	Interface engineering has become an important strategy for designing radiation-resistant materials. Critical to its success is fundamental understanding of the interactions between interfaces and radiation-induced defects, such as voids. Using transmission electron microscopy, here we report an interesting phenomenon in their interaction, wherein voids adhere to only one side of the bimetal interfaces rather than overlapping them. We show that this asymmetrical void-interface interaction is a consequence of differing surface energies of the two metals and non-uniformity in their interface formation energy. Specifically, voids grow within the phase of lower surface energy and wet only the high-interface energy regions. Furthermore, because this outcome cannot be accounted for by wetting of interfaces with uniform internal energy, our report provides experimental evidence that bimetal interfaces contain non-uniform internal energy distributions. This work also indicates that to design irradiation-resistant materials, we can avoid void-interface overlap via tuning the configurations of interfaces.
部门归属	[zheng, shijian ; shao, shuai ; zhang, jian ; wang, yongqiang ; beyerlein, irene j. ; mara, nathan a.] los alamos natl lab, los alamos, nm 87545 usa ; [zheng, shijian] chinese acad sci, inst met res, shenyang natl lab mat sci, beijing 100864, peoples r china ; [zhang, jian] xiamen univ, sch energy res, xiamen 361005, peoples r china ; [demkowicz, michael j.] mit, dept mat sci & engn, cambridge, ma 02139 usa
资助者	Center for Materials at Irradiation and Mechanical Extremes, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [2008LANL1026]; "Hundred Talents Project" of Chinese Academy of Sciences; National Natural Science Foundation of China [51401208]; Shenyang National Laboratory for Materials Science [2015RP18]
收录类别	sci
语种	英语
WOS记录号	WOS:000363107800001
引用统计	被引频次：43[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74615
专题	中国科学院金属研究所
通讯作者	sjzheng@imr.ac.cn
推荐引用方式 GB/T 7714	Zheng, Shijian,Shao, Shuai,Zhang, Jian,et al. Adhesion of voids to bimetal interfaces with non-uniform energies[J]. SCIENTIFIC REPORTS,2015,5:-.
APA	Zheng, Shijian.,Shao, Shuai.,Zhang, Jian.,Wang, Yongqiang.,Demkowicz, Michael J..,...&sjzheng@imr.ac.cn.(2015).Adhesion of voids to bimetal interfaces with non-uniform energies.SCIENTIFIC REPORTS,5,-.
MLA	Zheng, Shijian,et al."Adhesion of voids to bimetal interfaces with non-uniform energies".SCIENTIFIC REPORTS 5(2015):-.