Fatigue Crack Behavior of Welds in Q460NH Steel

Kun Ning Jia

doi:10.4028/www.scientific.net/AMR.337.674

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 337Fatigue Crack Behavior of Welds in Q460NH Steel

Fatigue Crack Behavior of Welds in Q460NH Steel

Abstract:

The fatigue crack growth behavior of weld joint of Q460NH steel is very important for estimating life-time in terms of a crack length in weld joint. In this paper , fatigue crack growth behavior of weld metal (WM),heat affected zone(HAZ) and mother metal(BM) have been researched at room temperature. The variation of fatigue crack growth rate(da/dN) with stress intensity factor range (ΔK) for WM, HAZ and BM is discussed within the Paris region. It is shown that fatigue crack growth rate of WM is the slowest in tree parts .

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Periodical:

Advanced Materials Research (Volume 337)

Pages:

674-677

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.337.674

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Online since:

September 2011

Authors:

Kun Ning Jia

Keywords:

Fatigue Crack Behavior, Fatigue Crack Growth Rate, Weld

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References

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