Effect of Crystal Orientation and Temperature on Fracture Behaviour of Single Crystal TiAl-Nb Alloys with Void

doi:10.11896/cldb.20030027

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	Effect of Crystal Orientation and Temperature on Fracture Behaviour of Single Crystal TiAl-Nb Alloys with Void
	Kou, Peipei 1,2; Feng, Ruicheng 1,2; Li, Haiyan 1,2; Li, Longlong 3
刊名	Cailiao Daobao/Materials Reports
	2021-05-25
卷号	35 期号:10 页码:10114-10119
关键词	Aluminum alloys Chromium alloys Crystal orientation Elastic moduli Fracture Fracture mechanics Molecular dynamics Molecular orientation Single crystals Ternary alloys Titanium alloys Yield stress Fracture behaviour Material failures Micro-defects Molecular dynamics methods Nb alloys Solid solution strengthening Ti-al-nb alloys Yield strain
ISSN号	1005023X
DOI	10.11896/cldb.20030027
英文摘要	The effects of crystal orientation and temperature on the fracture behaviour of single crystal TiAl-Nb alloys with void were studied by molecular dynamics method. The mechanical properties and internal micro-defect evolution of TiAl-Nb alloys under different conditions were analyzed. The results show that, the crystal orientation has a significant effect on the mechanical properties of TiAll-Nb alloys with voids, but has little effect on the fracture behaviour of it, which is maybe due to the reason that the solid solution strengthening effect is greater than that of dislocation because of the addition of Nb element. The higher the temperature lead to the smaller yield stress, yield strain and Young's modulus of TiAl-Nb alloys, the time is earlier when the dislocations first nucleate at the void, the fewer number and type of dislocations, as well as the time of the material failure is earlier. © 2021, Materials Review Magazine. All right reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150926]
专题	机电工程学院
作者单位	1.School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Digital Manufacturing Technology and Application, The Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Jinchuan Group Co., Ltd. Third Mining Area, 737100, China
推荐引用方式 GB/T 7714	Kou, Peipei,Feng, Ruicheng,Li, Haiyan,et al. Effect of Crystal Orientation and Temperature on Fracture Behaviour of Single Crystal TiAl-Nb Alloys with Void[J]. Cailiao Daobao/Materials Reports,2021,35(10):10114-10119.
APA	Kou, Peipei,Feng, Ruicheng,Li, Haiyan,&Li, Longlong.(2021).Effect of Crystal Orientation and Temperature on Fracture Behaviour of Single Crystal TiAl-Nb Alloys with Void.Cailiao Daobao/Materials Reports,35(10),10114-10119.
MLA	Kou, Peipei,et al."Effect of Crystal Orientation and Temperature on Fracture Behaviour of Single Crystal TiAl-Nb Alloys with Void".Cailiao Daobao/Materials Reports 35.10(2021):10114-10119.