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A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study
Hu, Ming1,2; Dong, Limin2; Zhang, Zhiqiang2; Lei, Xiaofei2; Yang, Rui2; Sha, Yuhui1
Corresponding AuthorDong, Limin(lmdong@imr.ac.cn)
2018-09-01
Source PublicationMATERIALS
ISSN1996-1944
Volume11Issue:9Pages:12
AbstractThe Arrhenius-type constitutive equation is mostly used to describe flow behaviors of material. However, no processing map has been constructed directly according to it. In this study, a novel computational method was applied for establishing the processing map for Ti-6Al-4V alloy in the temperature and strain rate range of 800-1050 degrees C and 0.001-10 s(-1), respectively. The processing map can be divided into four domains according to its graphic features. Among the four domains, the optimal domain is in the temperature and strain rate range of 850-925 degrees C and 0.001-0.1 s(-1), where peak efficiency eta is 0.54 and the main microstructural evolution is DRX (dynamic recrystallization). When the alloy is processed in the alpha + beta phase field, the temperature and strain rate range of 800-850 degrees C and 3-10 s(-1) should be avoided, where instability parameter sigma is negative and the microstructural feature is flow localization. When the alloy is processed in the beta phase field, DRV (dynamic recovery) and slight DRX of beta phase is the main microstructural characteristics in the range of 1000-1050 degrees C and 0.001-0.02 s(-1). However, flow localization of phase is the main microstructural feature in the range of 1000-1050 degrees C and 1-10 s(-1), which should be avoided.
KeywordTi-6Al-4V alloy hot deformation processing map microstructure
DOI10.3390/ma11091599
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000446395200115
PublisherMDPI
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129960
Collection中国科学院金属研究所
Corresponding AuthorDong, Limin
Affiliation1.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Hu, Ming,Dong, Limin,Zhang, Zhiqiang,et al. A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study[J]. MATERIALS,2018,11(9):12.
APA Hu, Ming,Dong, Limin,Zhang, Zhiqiang,Lei, Xiaofei,Yang, Rui,&Sha, Yuhui.(2018).A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study.MATERIALS,11(9),12.
MLA Hu, Ming,et al."A Novel Computational Method of Processing Map for Ti-6Al-4V Alloy and Corresponding Microstructure Study".MATERIALS 11.9(2018):12.
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