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author:

Wang, A.-X. (Wang, A.-X..) [1] | Liu, G. (Liu, G..) [2] | Zhou, L. (Zhou, L..) [3] | Lu, A.-Q. (Lu, A.-Q..) [4] | Yang, X.-H. (Yang, X.-H..) [5] | Li, Y. (Li, Y..) [6]

Indexed by:

Scopus PKU CSCD

Abstract:

316L stainless steel plate was treated by means of surface mechanical attrition treatment (SMAT) technique, and a gradient structure consisting of gradually increased grain size from nano-scale in the surface layer to micro-scale in the matrix was obtained. The SMAT sample was annealed in vacuum at different temperatures, and the structural evolution was analyzed. The results show that no obvious change can be found for the gradient structure when the annealing temperature is lower than 0.5 Tm (Tm is melt point of the steel). With increasing annealing temperature, recovery and grain growth occur in the gradient structure, however the grain growth rate is very low. The release of internal stress and micro-strain induce mechanical twinning below surface layer and martensite transformation in the nanostructured surface layer during annealing.

Keyword:

316L stainless steel; Annealing; Structure; Surface nanocrystallization

Community:

  • [ 1 ] [Wang, A.-X.]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
  • [ 2 ] [Wang, A.-X.]School of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 3 ] [Liu, G.]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
  • [ 4 ] [Zhou, L.]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
  • [ 5 ] [Lu, A.-Q.]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
  • [ 6 ] [Yang, X.-H.]School of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, China
  • [ 7 ] [Li, Y.]State Key Laboratory for Corrosion and Protection of Metals, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China

Reprint 's Address:

  • [Wang, A.-X.]Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China

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Source :

Transactions of Materials and Heat Treatment

ISSN: 1009-6264

Year: 2005

Issue: 4

Volume: 26

Page: 12-16

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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