Home / Vol. 5 No. 1 (1993)

THE EFFECTS OF HYDROGEN ON THE FRACTURE TOUGHNESS OF STAINLESS STEEL

A.T. Hassan

Libya

DOI: 10.68482/prj.1993.5.010 · Published Jan 1993 · Section: Industrial · Pages: 76–80

Abstract

A duplex stainless steel UB50 and 410 martensitic stainless steel were exposed to hydrogen using three different methods. Cathodic charging with hydrogen in an electrochemical cell, H2S NACE solution which consisted of 5 weight percent (w%) NaCl, 0.5 w% acetic acid, and balance of deionized water at room temperature, and NACE solution at 50°C. The effect of the methods on the fracture toughness showed that cathodic charging resulted in increasing and decreasing the fracture toughness of UB50 and 410, respectively. The H₂S NACE solution at room temperature resulted in decreasing the fracture toughness of both. Stainless steels and H₂S NACE solution at 50°C resulted in increasing and decreasing the fracture toughness of UB50 and 410, respectively.

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