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Effect of post-weld annealing on microstructure and properties of NiTi welding joints
D.; Jiang Yang, H. C.; Zhao, M. J.; Rong, L. J.
2014
Source PublicationMaterials Research Innovations
ISSN1432-8917
Volume18Pages:588-591
AbstractThe effect of post-weld annealing on the microstructure and properties of a Ni50.8Ti49.2 weld seam was systematically investigated. The experimental results indicated that the grain in the welding joint was refined and more and more Ni-rich particles were precipitated with the increasing annealing temperature. The differential scanning calorimeter results showed that the martensitic transformation behaviour changed from A-->R-->M/M-->R-->A (A: austenite, R: R phase and M: martensite) to A-->M/M-->A and A-->R-->M/M-->A with the increasing annealing temperatures. When annealed at 1073 K for 3600 s, the phase transformation temperature of the joint is close to that of the base metal. However, the ultimate tensile strength of the weld seam was not improved by the annealing.
description.department[yang, d. ; jiang, h. c. ; zhao, m. j. ; rong, l. j.] chinese acad sci, inst met res, dept mat special environm, shenyang 110016, peoples r china. ; rong, lj (reprint author), chinese acad sci, inst met res, dept mat special environm, 72 wenhua rd, shenyang 110016, peoples r china. ; ljrong@imr.ac.cn
KeywordPost-weld Annealing Niti Alloys Martensitic Transformation Shape-memory Alloys Behavior
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73997
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
D.,Jiang Yang, H. C.,Zhao, M. J.,et al. Effect of post-weld annealing on microstructure and properties of NiTi welding joints[J]. Materials Research Innovations,2014,18:588-591.
APA D.,Jiang Yang, H. C.,Zhao, M. J.,&Rong, L. J..(2014).Effect of post-weld annealing on microstructure and properties of NiTi welding joints.Materials Research Innovations,18,588-591.
MLA D.,et al."Effect of post-weld annealing on microstructure and properties of NiTi welding joints".Materials Research Innovations 18(2014):588-591.
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