2020
DOI: 10.3390/ma13071643
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Influence of Thermal Treatment on SCC and HE Susceptibility of Supermartensitic Stainless Steel 16Cr5NiMo

Abstract: A 16Cr5NiMo supermartensitic stainless steel was subjected to different tempering treatments and analyzed by means of permeation tests and slow strain rate tests to investigate the effect of different amounts of retained austenite on its hydrogen embrittlement susceptibility. The 16Cr5NiMo steel class is characterized by a very low carbon content. It is the new variant of 13Cr4Ni. These steels are used in many applications, for example, compressors for sour environments, offshore piping, naval propellers, airc… Show more

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Cited by 12 publications
(4 citation statements)
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“…Thermal treatment is the second way to obtain a compromise between mechanical properties, tribology, and resistance against corrosion. Heat treatment parameters must be chosen carefully such as austenitizing temperature, time, and cooling speed to ensure complete martensitic transformation and to avoid carbide precipitation and δ-ferrite formation during cooling stages [6][7][8]. The ideal microstructure will possess combination of strength, ductility, toughness and hardness i.e.…”
Section: Introductionmentioning
confidence: 99%
“…Thermal treatment is the second way to obtain a compromise between mechanical properties, tribology, and resistance against corrosion. Heat treatment parameters must be chosen carefully such as austenitizing temperature, time, and cooling speed to ensure complete martensitic transformation and to avoid carbide precipitation and δ-ferrite formation during cooling stages [6][7][8]. The ideal microstructure will possess combination of strength, ductility, toughness and hardness i.e.…”
Section: Introductionmentioning
confidence: 99%
“…The mechanical properties of these steels are highly dependent on their microstructural characteristics, such as volume fraction, morphology, and distribution of constituents, which, in turn, are determined by the reversed austenite condition at the intercritical temperature. Because of the significant influence on the final microstructure and mechanical properties of low-carbon martensitic stainless steels, the formation of reversed austenite in the intercritical temperature range has been widely studied in recent decades [8][9][10].…”
Section: Introductionmentioning
confidence: 99%
“…Retained austenite significantly increases the hydrogen solubility and decreases ductility of a hydrogen charged martensitic steel [17]. Failure due to hydrogen embrittlement can occur particularly when strain-induced martensite forms in austenite grains [18]. The freshly formed martensite then has a high concentration of hydrogen, which considerably facilitates cracking [19].…”
Section: Introductionmentioning
confidence: 99%