Method of accelerated evaluation of Klscc under stress corrosion cracking

✍ Scribed by O.Ye. Andreykiv; M.V. Lysak; V.R. Skalsky

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 510 KB
• Volume: 54
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(95)00190-5

✦ Synopsis

The method of accelerated evaluation of the threshold value of stress intensity factor K~,~, in materials under stress corrosion cracking by registration of the crack jumps is proposed. It is based on the model of subcritical jump-like propagation of mode 1 crack as a source of acoustic signals, when material is subjected to the corrosive environment and durable static loading simultaneous effect. The method was experimentally verified during evaluation of K~ of 9HF steel in NaCl water solution and gaseous hydrogen using the up-to-date equipment for recording the acoustic signals.