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Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy
Lu, Z; Xu, YB; Hu, ZQ
Corresponding AuthorLu, Z()
1999-02-01
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume15Issue:2Pages:165-168
AbstractCyclic deformation has been carried out on a directionally solidified cobalt base superalloy at room temperature in air under the control of different total strain amplitudes. Dislocation structures of different stages in the cyclic stress response curve were studied by TEM. Observations show that a large number of stacking faults and fault intersections are formed in the initial hardening stage, and this leads to the initial hardening of the alloy. However, formation of hexagonally close packed (hcp) zones and twins is proposed to be the cause of cyclic saturation. Models for both the transition from stacking faults to a hcp layer structure and to twins are proposed.
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000078917900008
PublisherINST MATERIALS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/109098
Collection中国科学院金属研究所
Corresponding AuthorLu, Z
AffiliationChinese Acad Sci, State Key Lab Fatigue & Fracture Mat, Met Res Inst, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Lu, Z,Xu, YB,Hu, ZQ. Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy[J]. MATERIALS SCIENCE AND TECHNOLOGY,1999,15(2):165-168.
APA Lu, Z,Xu, YB,&Hu, ZQ.(1999).Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy.MATERIALS SCIENCE AND TECHNOLOGY,15(2),165-168.
MLA Lu, Z,et al."Evolution of dislocation structure induced by cyclic deformation in a directionally solidified cobalt base superalloy".MATERIALS SCIENCE AND TECHNOLOGY 15.2(1999):165-168.
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