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Creep Crack Growth of P92 Welds

[+] Author Affiliations
Masataka Yatomi, Akio Fuji

IHI Corporation, Yokohama, Japan

Ken-ichi I. Kobayashi

Chiba University, Chiba, Japan

Masaaki Tabuchi

National Institute of Materials Science (NIMS), Tsukuba, Japan

Takeo Yokobori

Teikyo University, Utsunomiya, Japan

Yasushi Hasegawa

Nippon Steel Corporation, Huttsu, Japan

Toshimitsu Yokobori

Tohoku University, Sendai, Japan

Paper No. PVP2008-61406, pp. 1207-1214; 8 pages
doi:10.1115/PVP2008-61406
From:
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4829-6
  • Copyright © 2008 by ASME

abstract

This paper represents creep properties and creep crack growth properties for P92 welds. The CCG tests were carried out using cross-welded compact tension (C (T) specimens at several temperatures. The crack front was located at HAZ region to simulate Type IV crack. Finite element analysis was conducted to simulate multiaxiality in welded joints and compare the experimental results. The constitutive behaviour for these materials is described by a power law creep model.

Copyright © 2008 by ASME

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