| 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.
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| Source Publication | JOURNAL OF NUCLEAR MATERIALS
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| 2012-02-01 | |
| Volume | 421Issue:1-3Pages:9-14 |
| ISSN | 0022-3115 |
| Abstract | The 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. |
| Keyword | Cr-ti Alloys Mechanical-properties Neutron-irradiation Tensile Properties Vanadium Alloys Behavior Temperature Oxygen |
| Subject Area | 实验固体力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000300924600002 |
| Funding Organization | This 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. |
| Department | LNM实验平台 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46676 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Li, 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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