IMECH-IR  > 非线性力学国家重点实验室
Shear transformation zone volume determining ductile–brittle transition of bulk metallic glasses
Jiang F; Jiang MQ(蒋敏强); Wang HF; Zhao YL; He L; Sun J; J. Sun
Source PublicationActa Materialia
2011
Volume59Issue:5Pages:2057-2068
ISSN1359-6454
Other AbstractThree-point bending experiments were performed on as-cast and annealed samples of Zr52.5Cu17.9Ni14.6Al10Ti5 (Vit105) bulk metallic glasses over a wide range of temperatures varying from room temperature (293 K) to liquid nitrogen temperature (77 K). The results demonstrated that the free volume decrease due to annealing and/or cryogenic temperature can reduce the propensity for the formation of multiple shear bands and hence deteriorate plastic deformation ability. We clearly observed a sharp ductile-to-brittle transition (DBT), across which microscopic fracture feature transfers from micro-scale vein patterns to nano-scale periodic corrugations. Macroscopically, the corresponding fracture mode changes from ductile shear fracture to brittle tensile fracture. The shear transformation zone volume, taking into account free volume, temperature and strain rate, is proposed to quantitatively characterize the DBT behavior in fracture of metallic glasses.
Keywordbulk Metallic Glass Shear Transformation Zone Tension Transformation Zone Free Volume Ductile-to-brittle Transition
Subject Area新型材料的力学问题
DOI10.1016/j.actamat.2010.12.006
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000287775400020
DepartmentLNM冲击动力学与新型材料力学性能
Classification一类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/43313
Collection非线性力学国家重点实验室
Corresponding AuthorJ. Sun
Recommended Citation
GB/T 7714
Jiang F,Jiang MQ(蒋敏强),Wang HF,等. Shear transformation zone volume determining ductile–brittle transition of bulk metallic glasses[J]. Acta Materialia,2011,59(5):2057-2068.
APA Jiang F.,Jiang MQ.,Wang HF.,Zhao YL.,He L.,...&J. Sun.(2011).Shear transformation zone volume determining ductile–brittle transition of bulk metallic glasses.Acta Materialia,59(5),2057-2068.
MLA Jiang F,et al."Shear transformation zone volume determining ductile–brittle transition of bulk metallic glasses".Acta Materialia 59.5(2011):2057-2068.
Files in This Item: Download All
File Name/Size DocType Version Access License
Shear transformation(2244KB) 开放获取LicenseView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jiang F]'s Articles
[Jiang MQ(蒋敏强)]'s Articles
[Wang HF]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jiang F]'s Articles
[Jiang MQ(蒋敏强)]'s Articles
[Wang HF]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jiang F]'s Articles
[Jiang MQ(蒋敏强)]'s Articles
[Wang HF]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Shear transformation zone volume determining ductile–brittle transition of bulk metallic glasses.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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