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

C. Gupta; Hiroyuki Toda; C. Schlacher; Peter Mayr; Christof Sommitsch; Kentaro Uesugi; Yoshio Suzuki; Akihisa Takeuchi; Masakazu Kobayashi

doi:10.4028/www.scientific.net/AMR.794.476

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Study of Creep Damage in a 10.86% Cr Heat Resistant Steel using Synchrotron X-Ray Microtomography
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 794Study of Creep Damage in a 10.86% Cr Heat...

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

Abstract:

Synchrotron X-ray microtomography(SR-μCT) scans have been carried out on sample coupons extracted from the fracture specimens of a 10.86% Cr heat resistant steel exposed to crep deformation at 873K over stresses of 120, 150, and 180 MPa. The 3D cavitation characteristics in terms of void volume fraction, numbwer density and size distribution as a function of the applied stress has been determined by quantitative analysis of the reconstructed tomograohy slice datasets. The relationship between heterogenous spatial distribution of creep voids and variation in rupture life has been exploited in terms of microstructural sites during the onset of creep embrittlement.

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Periodical:

Advanced Materials Research (Volume 794)

Pages:

476-483

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.794.476

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Online since:

September 2013

Authors:

C. Gupta, Hiroyuki Toda, C. Schlacher, Peter Mayr, Christof Sommitsch, Kentaro Uesugi, Yoshio Suzuki, Akihisa Takeuchi, Masakazu Kobayashi

Keywords:

Creep Cavitation, Heat Resistant Steel, Synchrotron Microtomography

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