Failure analysis of a set of stainless steel disc springs

G. Atxaga; A. Pelayo; A. M. Irisarri

doi:10.1016/j.engfailanal.2005.01.011

Failure analysis of a set of stainless steel disc springs

G. Atxaga, A. Pelayo, A. M. Irisarri

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

This paper analyses the failure of a set of disc springs, broken in service in a seawater environment and at high temperature. These components were manufactured using a 17-7 PH, UNS S17700 precipitation hardening stainless steel. The morphology of the cracks was intergranular and it was attributed to hydrogen embrittlement due to the hydrogen that entered into the steel during the acid pickling. This hypothesis was confirmed by baking the samples to remove this hydrogen. This action increased significantly the ductility of the steel and modified the morphology of the fractures.

Original language	English
Pages (from-to)	226-234
Number of pages	9
Journal	Engineering Failure Analysis
Volume	13
Issue number	2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.engfailanal.2005.01.011
Publication status	Published - Mar 2006

Keywords

Baking treatment
Hydrogen embrittlement
Pickling
Stainless steels

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10.1016/j.engfailanal.2005.01.011

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AB - This paper analyses the failure of a set of disc springs, broken in service in a seawater environment and at high temperature. These components were manufactured using a 17-7 PH, UNS S17700 precipitation hardening stainless steel. The morphology of the cracks was intergranular and it was attributed to hydrogen embrittlement due to the hydrogen that entered into the steel during the acid pickling. This hypothesis was confirmed by baking the samples to remove this hydrogen. This action increased significantly the ductility of the steel and modified the morphology of the fractures.

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KW - Hydrogen embrittlement

KW - Pickling

KW - Stainless steels

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IS - 2 SPEC. ISS.

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Failure analysis of a set of stainless steel disc springs

Abstract

Keywords

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