Grain refinement and mechanical properties of pure aluminum processed by accumulative extrusion bonding

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

22 Scopus Citations
View graph of relations

Author(s)

  • Xiang CHEN
  • Guang-sheng HUANG
  • Shuai-shuai LIU
  • Ting-zhuang HAN
  • Bin JIANG
  • Ai-tao TANG
  • Fu-sheng PAN

Detail(s)

Original languageEnglish
Pages (from-to)437-447
Journal / PublicationTransactions of Nonferrous Metals Society of China (English Edition)
Volume29
Issue number3
Publication statusPublished - Mar 2019
Externally publishedYes

Abstract

Ultrafine-grained aluminum processed by a new severe plastic deformation technique, accumulative extrusion bonding (AEB), was investigated. Microstructural characterization indicated good interfacial bonding and an average grain size of ∼440 nm was obtained after six passes. Tensile testing revealed that the strength reached the maximum value of 195 MPa and the total elongation exceeded 16% after five passes. The hardness was also significantly improved and almost reached saturation after the first pass. SEM fractography of AEB-processed specimens after tensile test showed that failure mode was shear ductile fracture with elongated shallow dimples. Comparison with conventional accumulative roll bonding indicates that this new AEB technique is more effective in refining grain and improving mechanical properties of the specimens.

Research Area(s)

  • accumulative extrusion bonding, aluminum, mechanical properties, microstructure, strain hardening rate

Citation Format(s)

Grain refinement and mechanical properties of pure aluminum processed by accumulative extrusion bonding. / CHEN, Xiang; HUANG, Guang-sheng; LIU, Shuai-shuai; HAN, Ting-zhuang; JIANG, Bin; TANG, Ai-tao; ZHU, Yun-tian; PAN, Fu-sheng.

In: Transactions of Nonferrous Metals Society of China (English Edition), Vol. 29, No. 3, 03.2019, p. 437-447.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review