Crack Analysis of Casting Stainless Steel Support

Yan Yan Yu; Ti Jie Song; Zeng Wei Lu

doi:10.4028/www.scientific.net/MSF.1032.201

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HomeMaterials Science ForumMaterials Science Forum Vol. 1032Crack Analysis of Casting Stainless Steel Support

Crack Analysis of Casting Stainless Steel Support

Abstract:

A crack is found on the surface of stainless steel casting support. The crack was analyzed by macro and micro observation of fracture surface, Energy Dispersive Spectrometer (EDS) analysis, chemical analysis, microstructure examination and hardness test. Moreover, the stress distribution was simulated by finite element analysis. The results show that the crack model of the support is stress corrosion. The stress at the crack location is the largest. Three main factors of stress corrosion were the crack of paint layer, marine atmospheric environment and the pretightening force for the support. Because the service environment cannot be changed, therefore, surface paint protective effect and reduction of preload can be improved to avoid stress corrosion cracking again on the support.

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Materials Science and Industrial Applications III

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Periodical:

Materials Science Forum (Volume 1032)

Pages:

201-206

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1032.201

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Online since:

May 2021

Authors:

Yan Yan Yu*, Ti Jie Song, Zeng Wei Lu

Keywords:

Environment, Finite Element Simulation, Pretightening Force, Stress Corrosion

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