中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Microstructural and Mechanical Evolution of a Low Carbon Steel by Friction Stir Processing

文献类型:期刊论文

作者Sekban, Dursun Murat ; Aktarer, Semih Mahmut ; Zhang, Hao ; Xue, Peng ; Ma, Zongyi ; Purcek, Gencaga
刊名METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
出版日期2017-08-01
卷号48A期号:8页码:3869-3879
ISSN号1073-5623
通讯作者Purcek, G (reprint author), Karadeniz Tech Univ, Dept Mech Engn, TR-61080 Trabzon, Turkey. ; Purcek, G (reprint author), Giresun Univ, Fac Engn, Giresun, Turkey.
中文摘要A low carbon steel (Grade A) was subjected to friction stir processing (FSP), and the effect of FSP on the microstructure and mechanical properties was investigated systematically. It was found that two distinct zones called stir zone (SZ) and heat-effected zone (HAZ) were formed during FSP. The SZ and HAZ consist mainly of ferrite, widmanstatten ferrite, ferrite+cementite aggregates, and martensite. FSP considerably refined the microstructure of the steel by means of dynamic recrystallization mechanism and formed a volumetric defect-free basin-like processed region. The ferritic grain size of the steel decreased from 25 A mu m in the coarse-grained state to about 3 A mu m in the fine-grained state, and the grains formed were separated mostly by high angle of misorientation with low density of dislocations. This microstructural evolution brought about a considerable increase in both hardness and strength values without a considerable decrease in ductility. Ultrafine-grained microstructure formed around and just beneath the pin increased the hardness of the steel from 140 Hv0.3 to about 245 Hv0.3. However, no hardness uniformity was formed throughout the processed zone due to the changes in deformation- and temperature-induced microstructure. Both yield and tensile strength values of processed zone increased from 256 and 435 MPa to about 334 and 525 MPa, respectively.
学科主题Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
收录类别SCI
资助信息World Academy of Sciences (TWAS) under the Visiting Researchers Program of TWAS-UNESCO Associateship Scheme [3240260896]
语种英语
公开日期2017-08-17
源URL[http://ir.imr.ac.cn/handle/321006/78031]  
专题金属研究所_中国科学院金属研究所
推荐引用方式
GB/T 7714
Sekban, Dursun Murat,Aktarer, Semih Mahmut,Zhang, Hao,et al. Microstructural and Mechanical Evolution of a Low Carbon Steel by Friction Stir Processing[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2017,48A(8):3869-3879.
APA Sekban, Dursun Murat,Aktarer, Semih Mahmut,Zhang, Hao,Xue, Peng,Ma, Zongyi,&Purcek, Gencaga.(2017).Microstructural and Mechanical Evolution of a Low Carbon Steel by Friction Stir Processing.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,48A(8),3869-3879.
MLA Sekban, Dursun Murat,et al."Microstructural and Mechanical Evolution of a Low Carbon Steel by Friction Stir Processing".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 48A.8(2017):3869-3879.

入库方式: OAI收割

来源:金属研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。