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Atomistic Simulation of Interstitial Dislocation Loop Evolution under Applied Stresses in BCC Iron

文献类型：期刊论文

作者Long, Xue Hao1; Wang, Dong2; Setyawan, Wahyu3; Liu, Peng1; Gao, Ning2; Kurtz, Richard J.3; Wang, Zhi Guang2; Wang, Xue Lin1
刊名PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
出版日期2018
卷号215页码:1700494
关键词dislocation loop mechanics micro-crack molecular statics torsion
ISSN号1862-6300
DOI10.1002/pssa.201700494
英文摘要Evolution of an interstitial 1/2111 dislocation loop under tensile, shear, and torsion stresses is studied with molecular statics method. Under a tensile stress, the dependence of ultimate tensile strength on size of loop is calculated. The formation of small shear loops around the initial prismatic loop is confirmed as an intermediate state to form the final dislocation network. Under a shear stress, the rotation of a loop is observed not only by a change of the habit plane but also through a transformation between a shear and a prismatic loop. Under torsion, a perfect BCC crystal may undergo a BCC to FCC or BCC to HCP transformation. The present work indicates that a 1/2111 loop can delay these transformations, resulting in the formation of micro-crack on the surface.
WOS关键词HIGH-PRESSURE TORSION ; PHASE-TRANSFORMATION ; ALPHA-IRON ; TEMPERATURE ; STRENGTH ; TENSION ; STEEL
资助项目National Natural Science Foundation of China[11375242] ; National Natural Science Foundation of China[11675230] ; National Natural Science Foundation of China[91426301] ; Youth Innovation Promotion Association CAS ; Office of Fusion Energy Sciences, U.S. Department of Energy[DE-AC05-76RL01830]
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:000419754600007
出版者WILEY-V C H VERLAG GMBH
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Office of Fusion Energy Sciences, U.S. Department of Energy
源URL[http://119.78.100.186/handle/113462/47110]  
专题中国科学院近代物理研究所
作者单位1.Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Gansu, Peoples R China
3.Pacific Northwest Natl Lab, POB 999, Richland, WA 99352 USA
推荐引用方式
GB/T 7714		 Long, Xue Hao,Wang, Dong,Setyawan, Wahyu,et al. Atomistic Simulation of Interstitial Dislocation Loop Evolution under Applied Stresses in BCC Iron[J]. PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE,2018,215:1700494.
APA Long, Xue Hao.,Wang, Dong.,Setyawan, Wahyu.,Liu, Peng.,Gao, Ning.,...&Wang, Xue Lin.(2018).Atomistic Simulation of Interstitial Dislocation Loop Evolution under Applied Stresses in BCC Iron.PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE,215,1700494.
MLA Long, Xue Hao,et al."Atomistic Simulation of Interstitial Dislocation Loop Evolution under Applied Stresses in BCC Iron".PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 215(2018):1700494.

入库方式： OAI收割

来源：近代物理研究所

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