Effects of .ALPHA...LAR..RAR...GAMMA. partial transformation on recrystallization after hot deformation in 17%Cr stainless steel.

DOI Web Site 4 Citations Open Access
  • TAKESHITA Tetsurou
    Stainless Steel Research Laboratory, R & D Laboratories-II, Nippon Steel Corporation
  • HARASS Jirou
    Stainless Steel Research Laboratory, R & D Laboratories-II (stationed at Higashida), Nippon Steel Corporation
  • YADA Hiroshi
    heet & Coil Research Laboratory, R & D Laboratories-II (stationed at Higashida), Nippon Steel Corporation

Description

The isothermal recrystallization behavior of 17% Cr stainless steel at the temperature range from 900 to 1250°C was investigated with a plain compression type hot deformation simulator. Special emphasis was put on the effects of α_??_γ partial transformation on recrystallization, which were studied by varying the amount of γ phase prior to deformation. In the partial transformation region, the effects of transformation on recrystallization were markedly large. When specimens were cooled down from the a single phase region to the α+γ phase region, recrystallization was suppressed by the strain enhanced transformation of α→γ. When specimens were cooled down from the α+γ phase region to the α+carbides phase region, recrystallization was suppressed by the strain enhanced decomposition of γ phase. From the above results, the suppression of recrystallization was attributed to the depletion of recrystallization nucleation sites by the strain enhanced partial transformation.

Journal

Citations (4)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top