Study on the Influence Factors of DWTT for X70 Thick Wall Linepipe

Ming Hua Liang; Hong Yan Liu; Xiao Dong He

doi:10.4028/www.scientific.net/AMM.459.149

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 459Study on the Influence Factors of DWTT for X70...

Study on the Influence Factors of DWTT for X70 Thick Wall Linepipe

Abstract:

Drop Weight Tear Testing (DWTT) method is widely used for determining a materials ability to arrest a propagating crack. The influence factors of DWTT are discussed for X70 thick wall linepipe steel. The effects of nonuniformity of the material, ductile-brittle transition temperature, notch type, evaluation method of the fracture surface, machining method and the test equipments are discussed. Some solutions and recommendations to the problems are proposed.

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Periodical:

Applied Mechanics and Materials (Volume 459)

Pages:

149-152

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.459.149

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Online since:

October 2013

Authors:

Ming Hua Liang*, Hong Yan Liu, Xiao Dong He

Keywords:

DWTT, Influence Factor, Thick Wall Linepipe, X70

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References

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