Effect of inclusions on fracture behavior of cast and wrought 13% Cr-4% Ni martensitic stainless steels

被引:17
|
作者
Foroozmehr, Fayaz [1 ]
Verreman, Yves [1 ]
Chen, Jianqiang [1 ]
Thibault, Denis [2 ]
Bocher, Philippe [3 ]
机构
[1] Ecole Polytech Montreal, CP 6079,Succ Ctr Ville, Montreal, PQ H3C 3A7, Canada
[2] Inst Rech Hydro Quebec, 1800 Bout Lionel Boulez, Varennes, PQ J3X 1S1, Canada
[3] ETS, Montreal, PQ H3C 1K3, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Fracture toughness; Microstructure; Martensitic stainless steels; Inclusions; TRIP effect; TOUGHNESS; MICROSTRUCTURE; STRENGTH;
D O I
10.1016/j.engfracmech.2017.02.002
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Microstructures and inclusion characteristics of cast and wrought 13% Cr-4% Ni martensitic stainless steels were related to tensile, fracture toughness J(Ic), and Charpy V-notch absorbed energy. A lower volume fraction of inclusions, a larger number of inclusions smaller than 10 mu m, and a more resistant inclusion type against rupture and against micro-void formation were the key parameters explaining why the wrought steel has better mechanical properties than the cast steel. It has been shown that TRIP effect occurs only in a small region of 6 mm length from the crack plane in J(Ic)-test. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:262 / 278
页数:17
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