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Abstract The hydrogen embrittlement (HE) of a twinning-induced plasticity (TWIP) steel was studied focusing on the influence of vanadium (V) and rare earth (RE) microalloying. The HE resistance of the… Click to show full abstract
Abstract The hydrogen embrittlement (HE) of a twinning-induced plasticity (TWIP) steel was studied focusing on the influence of vanadium (V) and rare earth (RE) microalloying. The HE resistance of the TWIP steel was increased by 0.20(wt.%) V microalloying attributed to the VC precipitates dispersing the mechanical twins and so changing the brittle cleavage fracture surface from a straight smooth surface to a tortuous rough surface. 0.022(wt.%) RE microalloying significantly reduced the HE affected range and changed the total brittle fracture to a partially ductile fracture.
Journal Title: Corrosion Science
Year Published: 2021
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