IMR OpenIR
Plastic Deformation Behavior of Biomedical Ti-24Nb-4Zr-8Sn Single Crystal Alloy
Zhang Jinrui1,2; Zhang Yanwei3; Hao Yulin1; Li Shujun1; Yang Rui1
Corresponding AuthorHao Yulin(ylhao@imr.ac.cn)
2017-10-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume53Issue:10Pages:1385-1392
AbstractExcellent corrosion resistance, good biocompatibility and relatively low elastic modulus make Ti and Ti alloys fulfill the property requirements in the biomedical field better than other competing materials such as stainless steels. Even so, there still exist some problems to be solved such as the biological toxicity of some alloy elements and the so-called stress shielding effect caused by higher elastic modulus than that of human bone. In response to these issues, several metastable b-type Ti alloys were developed with the advantage of nontoxicity and a much lower elastic modulus. Ti-24Nb-4Zr-8Sn (mass fraction, %, abbreviated Ti2448) alloy is a multifunctional biomedical Ti alloy with high strength and low elastic modulus, which makes it show great application prospect in the field of body implant. It put up obvious nonlinear elasticity and highly localized plastic deformation behavior. Study on deformation behavior of single crystal can help to understand the deformation mechanism of polycrystalline alloy. In this work, Ti2448 single crystal alloy along three different orientations were prepared by optical floating zone method. The plastic deformation behaviors of them under tensile stress were investigated in terms of mechanical properties, slip system and fracture morphology. Results show that Ti2448 single crystal shows obvious anisotropy, the tensile strengths along < 100>, < 110> and < 111> orientations are 650, 642 and 889 MPa, respectively, while the elongations are about 73%, 22% and 13%, respectively. The main plastic deformation mechanism of Ti2448 single crystal alloy is by slip. The appearance of slip bands and its direction relationship with crystal orientation were detailed observed. Under tensile stress, the operated slip systems for < 100>, < 110> and < 111> orientation single crystals are (112)[111]/(112)[111]/(112)[111]/(112)[111], (211) [111]/(211)[111] and (211)[111], respectively. This is in accordance with the law of critical shearing stress. SEM analyses show a fracture surface shape of rectangle, duckbilled and triangle for the < 100>, < 110> and < 111> orientation single crystals, respectively. The intersection angle between fracture surface and loading direction is all about 55 degree, and a lot of dimple was detected that show ductile fracture mode.
Keywordbiomedical metal titanium alloy single crystal plastic deformation
Funding OrganizationNational Natural Science Foundation of China ; National High Technology Research and Development Program of China ; National Key Research and Development Program of China
DOI10.11900/0412.1961.2017.00255
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51571190] ; National Natural Science Foundation of China[51271180] ; National Natural Science Foundation of China[51631007] ; National Natural Science Foundation of China[51527801] ; National High Technology Research and Development Program of China[2015AA033702] ; National Key Research and Development Program of China[2016YFC1102600] ; National Key Research and Development Program of China[2017YFC1104903]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000416301400022
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/127027
Collection中国科学院金属研究所
Corresponding AuthorHao Yulin
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
3.Suzhou Nucl Power Res Inst, Life Management Technol Ctr, Suzhou 215004, Peoples R China
Recommended Citation
GB/T 7714
Zhang Jinrui,Zhang Yanwei,Hao Yulin,et al. Plastic Deformation Behavior of Biomedical Ti-24Nb-4Zr-8Sn Single Crystal Alloy[J]. ACTA METALLURGICA SINICA,2017,53(10):1385-1392.
APA Zhang Jinrui,Zhang Yanwei,Hao Yulin,Li Shujun,&Yang Rui.(2017).Plastic Deformation Behavior of Biomedical Ti-24Nb-4Zr-8Sn Single Crystal Alloy.ACTA METALLURGICA SINICA,53(10),1385-1392.
MLA Zhang Jinrui,et al."Plastic Deformation Behavior of Biomedical Ti-24Nb-4Zr-8Sn Single Crystal Alloy".ACTA METALLURGICA SINICA 53.10(2017):1385-1392.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang Jinrui]'s Articles
[Zhang Yanwei]'s Articles
[Hao Yulin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang Jinrui]'s Articles
[Zhang Yanwei]'s Articles
[Hao Yulin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang Jinrui]'s Articles
[Zhang Yanwei]'s Articles
[Hao Yulin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.