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

来源：

ENGINEERING FRACTURE MECHANICS | 2017年 / 175卷

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

页码：262 / 278

页数：17

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