Journal ArticleDOI
Creep damage evaluation of 9Cr–1Mo–V–Nb steel welded joints showing Type IV fracture
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TLDR
In this article, the authors conducted long-term creep rupture tests for 9Cr-1Mo-V-Nb (P91) steel welded joints and examined the relationship between microstructural changes and crack nucleation site and propagation path.About:
This article is published in International Journal of Pressure Vessels and Piping.The article was published on 2006-01-01. It has received 165 citations till now. The article focuses on the topics: Creep & Fracture mechanics.read more
Citations
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Journal ArticleDOI
A review of non-destructive techniques for the detection of creep damage in power plant steels
TL;DR: A critical review of the main results obtained to date in the secondary and tertiary stages of creep is presented in this article, and the advantages and disadvantages of each method are discussed.
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Some studies on P91 steel and their weldments
TL;DR: In this article, microstructure evolution in P91 steel and their weldments are reviewed in as-virgin and heat treatment and creep exposure condition, and the role of grain coarsening, Cr/Fe ratio, lath widening and dislocation density on creep rupture life of base metal and weldments is discussed.
Journal ArticleDOI
Characterization of as-welded microstructure of heat-affected zone in modified 9Cr–1Mo–V–Nb steel weldment
TL;DR: In this paper, the non-equilibrium microstructure of the heat-affected zone (HAZ) in the as-welded modified 9Cr-1Mo-V-Nb pipe steel (P91) weldment was characterized by field-emission scanning electron microscope (FESEM) and electron backscatter diffraction (EBSD).
Journal ArticleDOI
Effect of normalization and tempering on microstructure and mechanical properties of V-groove and narrow-groove P91 pipe weldments
TL;DR: In this article, the effect of post weld heat treatment and normalized and tempered (N&T) heat treatment on tensile properties and hardness variation of P91 weldments was investigated.
Journal ArticleDOI
Weld metal microstructure analysis of 9–12% Cr steels
TL;DR: In this article, the microstructure in the weld metal of high-strength 9-12% Cr steels for several samples with variations of key alloying elements was analyzed.
References
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Journal ArticleDOI
Analysis of creep in a welded ‘P91’ pressure vessel
Gunther Eggeler,Ashok Ramteke,Mike Coleman,Brian Chew,Gerhard Peter,Andreas Burblies,John Hald,Clive Jefferey,Jahani Rantala,Mark deWitte,Ralf Mohrmann +10 more
TL;DR: In this article, the uniaxial and multiaaxial creep behaviour of the tempered martensite 9%Cr 1%Mo steel P91 and the creep behavior of welds in a P91 pressure vessel were investigated by means of optical microscopy and hardness measurements.
Journal ArticleDOI
Creep crack growth behavior in the HAZ of weldments of W containing high Cr steel
TL;DR: In this paper, the creep and crack growth properties of W strengthened 11Cr-0.4Mo-2W steel welded joints have been investigated at 923 K. The joints were prepared using gas tungsten arc (GTA) welding and electron beam (EB) welding.
Journal ArticleDOI
Degradation of Mod.9Cr-1Mo Steel during Long-term Creep Deformation
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Degradation of Creep Strength in Welded Joint of 9%Cr Steel
TL;DR: In this article, the degradation of creep strength in the heat affected zone (HAZ) of welded joint has been investigated for a tungsten-strengthened 9Cr steel, 9Cr-0.5Mo-1.8W-VNb.
Journal ArticleDOI
Variation in the Type IV cracking behaviour of a high Cr steel weld with post weld heat treatment
Shaju K. Albert,Masakazu Matsui,Takashi Watanabe,Hiromichi Hongo,Kiyoshi Kubo,Masaaki Tabuchi +5 more
TL;DR: In this paper, the authors conducted creep tests on P122 steel cross weld specimens at 70 MPa after post weld heat treatment (PWHT) for different durations and found that the duration of PWHT did not influence the rupture time and all the specimens failed in a typical Type IV manner.
Related Papers (5)
Review of type IV cracking of weldments in 9–12%Cr creep strength enhanced ferritic steels
D J Abson,J S Rothwell +1 more