作者: Sunil Kumar Bonagani , B. Vishwanadh , Sharma Tenneti , N. Naveen Kumar , Vivekanand Kain
DOI: 10.1016/J.IJPVP.2019.103969
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摘要: Abstract The influence of tempering treatments on mechanical properties and hydrogen embrittlement (HE) 13 wt% Cr martensitic stainless steel (MSS) have been investigated by Charpy impact tests slow strain rate tensile (SSRT) followed fracture surface examination. austenitized quenched specimens were tempered at 300, 550 700 °C for 2.5 h. MSS 550 °C showed brittle intergranular (IG) after indicating its susceptibility to temper embrittlement. experimental results that the is sensitive HE. as-quenched condition cracking during pre-charging itself. Hydrogen duration increased HE MSS. maximum was observed specimen with a drastic reduction in strength failure. Tempering 300 IG SSRT whereas region ductile dimples increase duration. reason due synergistic interaction impurities segregated prior austenitic grain boundaries.