Hydrogen Embrittlement of Welded Joint Made of Supermartensitic Stainless Steel in Environment Containing Sulfane

• Main Authors: Jonšta P., Váňová P., Brožová S., Pustějovská P., Sojka J., Jonšta Z., Ingaldi M.
• Format: Article
• Language: English
• Published: Polish Academy of Sciences 2016-06-01
• Series: Archives of Metallurgy and Materials
• Subjects: hydrogen embrittlement; sulfane; tensile test; supermartensitic stainless steel; weld joint
• Online Access: http://www.degruyter.com/view/j/amm.2016.61.issue-2/amm-2016-0121/amm-2016-0121.xml?format=INT
• ISSN: 2300-1909

The work is focused on evaluation of resistance of the welded joint made of supermartensitic 13Cr6Ni2.5Mo stainless steel to sulfide stress cracking. Testing method A and solution B in accordance with NACE TM 0177 were used. All the testing samples were ruptured in a very short time interval but welded joint samples were fractured primarily in the weld metal or in heat affected zone and not in the basic material. Material analysis of samples were made with use of a ZEISS NEOPHOT 32 light microscope and a JEOL 6490LV scanning electron microscope.