Title: Effect of heat treatments on the hydrogen embrittlement susceptibility of API X-65 grade line-pipe steel
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Indian Academy of Sciences
Abstract
Delayed failure tests were carried out on hydrogen charged API X-65 grade line-pipe steel in as received (controlled rolled), normalized, and quenched and tempered conditions. The resistance to hydrogen embrittlement was found in the order of controlled rolled > quenched and tempered > normalized. The fracture mode in the hydrogen embrittled steel was ductile.