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In-situ SEM observation on the fracture of V-5Cr-5Ti alloy
Li YF; Dong P; Li RW; Yang JR; Xie JJ(谢季佳); Li, YF; Sci & Technol Surface Phys & Chem Lab, POB 718-35, Mianyang 621907, Sichuan, Peoples R China.
Source PublicationJOURNAL OF NUCLEAR MATERIALS
2012-02-01
Volume421Issue:1-3Pages:9-14
ISSN0022-3115
AbstractThe damage and fracture characteristic of V-5Cr-5Ti (wt.%) alloy was investigated using scanning electron microscope (SEM) with a micro-tension holder. Two types of specimen were used: smooth sheet and single-edge notched sheet. Results show that the microscopic fracture mechanism of smooth sheet alloy is microvoid coalescence and sliding off. What the fracture process shows is that the damage of smooth specimen stems from the inside. The alloy can be strengthened by single-edge notch but still remains considerable ductility. The main fracture mechanism of notched specimens is sliding off and quasi-cleavage. The main crack initiates at the root of notch and propagates along a zig-zag path. Grain boundary is a main barrier for crack propagation. Finite element method (FEM) simulation shows that the crack growth relaxes the stress of notched specimen, which in turn changes the fracture mechanism of alloy.
KeywordCr-ti Alloys Mechanical-properties Neutron-irradiation Tensile Properties Vanadium Alloys Behavior Temperature Oxygen
Subject Area实验固体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000300924600002
Funding OrganizationThis work was supported by the Science and Technology Foundation of CAEP under Grant No. 2009B0302036. Authors thanks Su Yang and Zhigang Wang for specimens preparation, and Tingting Liu for SEM analysis.
DepartmentLNM实验平台
Classification二类/Q2
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Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46676
Collection非线性力学国家重点实验室
Corresponding AuthorLi, YF; Sci & Technol Surface Phys & Chem Lab, POB 718-35, Mianyang 621907, Sichuan, Peoples R China.
Recommended Citation
GB/T 7714
Li YF,Dong P,Li RW,et al. In-situ SEM observation on the fracture of V-5Cr-5Ti alloy[J]. JOURNAL OF NUCLEAR MATERIALS,2012,421(1-3):9-14.
APA Li YF.,Dong P.,Li RW.,Yang JR.,谢季佳.,...&Sci & Technol Surface Phys & Chem Lab, POB 718-35, Mianyang 621907, Sichuan, Peoples R China..(2012).In-situ SEM observation on the fracture of V-5Cr-5Ti alloy.JOURNAL OF NUCLEAR MATERIALS,421(1-3),9-14.
MLA Li YF,et al."In-situ SEM observation on the fracture of V-5Cr-5Ti alloy".JOURNAL OF NUCLEAR MATERIALS 421.1-3(2012):9-14.
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