Paper Title:
Failure Analysis of Hydrogen Corrosion of the Lens Gasket
  Abstract

The 10MoWVNb steel lens gaskets are widely used for the flange linking of high pressure tube in the synthetic ammonia system in chemical fertilizer plant. The gasket worked in H2-N2-NH3 environment at the temperature of 300°C. It often fails because of hydrogen corrosion. The microstructure and corrosion characteristic of the lens gasket were studied by optical microscope. The results showed that the hydrogen blister appeared preferentially at the interface of inclusions. The corrosion depth was 0.65 millimeter. There were little intergranular crack on inner surface.

  Info
Periodical
Edited by
Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng
Pages
462-465
DOI
10.4028/www.scientific.net/AMM.37-38.462
Citation
X. C. Ma, G. F. Xu, "Failure Analysis of Hydrogen Corrosion of the Lens Gasket", Applied Mechanics and Materials, Vols. 37-38, pp. 462-465, 2010
Online since
November 2010
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$32.00
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