Study of Creep damage in a 10.86% Cr Heat Resistant Steel using Synchrotron X-ray Microtomography

被引：0
|
作者：
Gupta, C. [1 ,2 ]
Toda, H. [2 ]
Schlacher, C. [3 ]
Mayr, P. [4 ]
Sommitsch, C. [3 ]
Uesugi, K. [5 ]
Suzuki, Y. [5 ]
Takeuchi, A. [5 ]
Kobayashi, M. [2 ]
机构：
[1] Bhabha Atom Res Ctr, Mech Met Div, Mat Grp, Bombay 400085, Maharashtra, India
[2] Toyohashi Univ Technol, Dept Mech Engn, Toyohashi, Aichi 4418150, Japan
[3] Graz Univ Technol, Inst Mat Sci & Welding, A-8010 Graz, Austria
[4] Technol Univ Chemnitz, Inst Joimimg & Assembly, D-09126 Chemnitz, Germany
[5] Japan Synchrotron Radiat Res Inst, Hyogo 6795198, Japan
来源：
CENTURY OF STAINLESS STEELS | 2013年 / 794卷
关键词：
Heat Resistant Steel; Creep Cavitation; Synchrotron Microtomography;
D O I：
10.4028/www.scientific.net/AMR.794.476
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Synchrotron X-ray micro-tomography (SR-mu CT) scans have been carried out on sample coupons extracted from fracture specimens of a 10.86% Cr heat resistant steel exposed to creep deformation at 873K over stresses of 120, 150 and 180 MPa. The 3D cavitation characteristics in terms of void volume fraction, number density and size distribution as a function of the applied stress has been determined by quantitative analysis of reconstructed tomography slice datasets. The relationship between heterogeneous spatial distributions of creep voids and variation in rupture life has been explored in terms of microstructural specific nucleation sites during the onset of creep embrittlement.
引用
收藏
页码：476 / +
页数：3
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