IMECH-IR  > 非线性力学国家重点实验室
A new method for grain refinement in magnesium alloy: High speed extrusion machining
Liu Y; Cai SL; Dai LH(戴兰宏); Liu, Y (reprint author), Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China.
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
2016-01-10
Volume651Pages:878-885
ISSN0921-5093
AbstractMagnesium alloys have received broad attentions in industry due to their competitive strength to density ratio, but the poor ductility and strength limit their wide range of applications as engineering materials. A novel severe plastic deformation (SPD) technique of high speed extrusion machining (HSEM) was used here. This method could improve the aforementioned disadvantages of magnesium alloys by one single processing step. In this work, systematic HSEM experiments with different chip thickness ratios were conducted for magnesium alloy AZ31B. The microstructure of the chips reveals that HSEM is an effective SPD method for attaining magnesium alloys with different grain sizes and textures. The magnesium alloy with bimodal grain size distribution has increased mechanical properties than initial sample. The electron backscatter diffraction (EBSD) analysis shows that the dynamic recrystallization (DRX) affects the grain refinement and resulting hardness in AZ31B. Based on the experimental observations, a new theoretical model is put forward to describe the effect of DRX on materials during HSEM. Compared with the experimental measurements, the theoretical model is effective to predict the mechanical property of materials after HSEM. (c) 2015 Elsevier B.V. All rights reserved.
KeywordHigh Speed Extrusion Machining Magnesium Alloy Grain Refinement Dynamic Recrystallization
DOI10.1016/j.msea.2015.11.046
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000367486800100
WOS KeywordSEVERE PLASTIC-DEFORMATION ; BULK NANOSTRUCTURED MATERIALS ; HIGH-PRESSURE TORSION ; AZ31 MG ALLOY ; MECHANICAL-PROPERTIES ; ELEVATED-TEMPERATURES ; STRAIN ; MICROSTRUCTURE ; EVOLUTION ; METALS
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationThis work has been supported by the National Natural Science Foundation of China (Grant no. 11132011), Fundamental Research Funds for the Central Universities (Grant no. FRF-TP-15-101A1), the National Basic Research Program of China (Grant no. 2012CB937500), and the CAS/SAFEA International Partnership Program for Creative Research Teams.
DepartmentLNM冲击动力学与新型材料力学性能
Classification一类
RankingFalse
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58645
Collection非线性力学国家重点实验室
Corresponding AuthorLiu, Y (reprint author), Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China.
Recommended Citation
GB/T 7714
Liu Y,Cai SL,Dai LH,et al. A new method for grain refinement in magnesium alloy: High speed extrusion machining[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,651:878-885.
APA Liu Y,Cai SL,戴兰宏,&Liu, Y .(2016).A new method for grain refinement in magnesium alloy: High speed extrusion machining.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,651,878-885.
MLA Liu Y,et al."A new method for grain refinement in magnesium alloy: High speed extrusion machining".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 651(2016):878-885.
Files in This Item: Download All
File Name/Size DocType Version Access License
a2016-125.pdf(6312KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu Y]'s Articles
[Cai SL]'s Articles
[戴兰宏]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu Y]'s Articles
[Cai SL]'s Articles
[戴兰宏]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu Y]'s Articles
[Cai SL]'s Articles
[戴兰宏]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: a2016-125.pdf
Format: Adobe PDF
 

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