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作者:

Zhang, Changjiang (Zhang, Changjiang.) | Li, Xiang (Li, Xiang.) | Zhang, Shuzhi (Zhang, Shuzhi.) | Chai, Lihua (Chai, Lihua.) | Chen, Ziyong (Chen, Ziyong.) (学者:陈子勇) | Kong, Fantao (Kong, Fantao.) | Chen, Yuyong (Chen, Yuyong.)

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EI Scopus SCIE

摘要:

In this paper, as cast 2.5 vol% (TiBw+TiCp)/Ti composites were subjected to direct rolling down to 45%, 65% and 85% reduction in thickness in the (alpha+beta) phase region. The microstructure evolution and tensile properties of the composites during direct rolling were investigated. The results show that increasing of the rolling deformation contributes to the refinement of primary a phase (alpha(p)) and the improvement of the distribution uniformity of TiBw and TiCp. Furthermore, both the tensile strength and elongation are significantly enhanced with increasing of the rolling deformation. As the rolling reduction reaches 85%, the 2.5 vol% (TiBw+TiCp)/Ti composites exhibit an excellent balance of strength and elongation to failure both at RT and 600 degrees C, which is mainly attributed to the microstructure refinement and the load-sharing effect of TiBw and TiCp. Fracture analysis shows that the fracture TiBw and TiCp followed by the ductile failure of the matrix is the failure mechanism of the composites both at RT and 600 degrees C.

关键词:

Microstructure Tensile properties TiB whiskers TiC particles Titanium matrix composites

作者机构:

  • [ 1 ] [Zhang, Changjiang]Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China
  • [ 2 ] [Li, Xiang]Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China
  • [ 3 ] [Zhang, Shuzhi]Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China
  • [ 4 ] [Chai, Lihua]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Chen, Ziyong]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Kong, Fantao]Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China
  • [ 7 ] [Chen, Yuyong]Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China

通讯作者信息:

  • [Zhang, Changjiang]Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China;;[Zhang, Shuzhi]Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China

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来源 :

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

ISSN: 0921-5093

年份: 2017

卷: 684

页码: 645-651

6 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:169

中科院分区:2

被引次数:

WoS核心集被引频次: 44

SCOPUS被引频次: 47

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

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