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Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube
Yan Ying1; Jin Wei2; Cao Mingzhou2
Corresponding AuthorYan Ying(yingyan@imp.neu.edu.cn)
2008-02-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume44Issue:2Pages:139-144
AbstractThe microstructures, textures and phase transformations in forged bar, hot-extruded tube, and cold-rolled tubes at different heat-treated conditions of Ni47Ti44Nb9 alloy were investigated by OM, DSC and XRD. The results show that 132 phase in the forged rod has broad fibred shape, and main textures are close to {112} < 111 > and {123} < 111 >; Fibred microstructure in the hot-extruded tube is refined, and the orientations of many grains are close to {111} < UVW >; B2 phase fibres in the cold-rolled tube have been heavily broken, which restrains martensitic phase transformation during cooling, and {111}< 110 > and {112} < 110 > become the major textures. With the increase of quenching temperature, hardness of the cold-rolled tube decreases, M. and A. points increase, thermal hysteresis drops. The above textures in the cold-tube annealed at 600 V for 90 min markedly enhance. When the annealing temperature is 850 V, the recrystallized grains in the cold-rolled tube obviously grow, M,, point markedly increases, thermal hysteresis and hardness decrease, the main textures depart from {111} < 110 > and {112} < 110 >.
KeywordNi47Ti44Nb9 shape memory alloy cold-rolled tube microstructure texture phase transformation
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000253792500003
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/94136
Collection中国科学院金属研究所
Corresponding AuthorYan Ying
Affiliation1.Northeastern Univ, Inst Mat Phys & Chem, Shenyang 110004, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Yan Ying,Jin Wei,Cao Mingzhou. Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube[J]. ACTA METALLURGICA SINICA,2008,44(2):139-144.
APA Yan Ying,Jin Wei,&Cao Mingzhou.(2008).Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube.ACTA METALLURGICA SINICA,44(2),139-144.
MLA Yan Ying,et al."Microstructure, texture and phase transformation of Ni47Ti44Nb9 shape memory alloy cold-rolled tube".ACTA METALLURGICA SINICA 44.2(2008):139-144.
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