발간논문

Home > KJMM 논문 > 발간논문

Vol.36, No.12, 2182 ~ 2194, 1998
Title
A Study on the Susceptibility to Intergranular Stress - Corrosion Cracking of Type 321 Stainless Steel Pipe Weldments
이재봉 , 김경택 , 김재웅 Jae Bong Lee , Gyoung Taek Kim , Jae Woong Kim
Abstract
The susceptibility to intergranular stress-corrosion cracking of type 321 stainless steel weldments with the effect of various post-weld heat treatments was investigated measuring the degree of sensitization by using the double loop EPR(electrochemical potentiokinetic reactivation) test and the oxalic acid etch test. The effects of post-weld heat treatments on the increase in resistance to sensitization of weldments were simulated by heat-treating as-received samples with a furnace in the laboratory. In addition to heat-treatment simulation tests, the weldments fabricated same as done in the field were tested in order to elucidate the effects of post weld heat treatments on sensitization and intergranular stress-corrosion cracking. The relationship between the resistance to polythionic acid stress-corrosion cracking (PA SCC) and the sensitization of weldments was also investigated by conducting bending SCC tests as well as slow strain-rate tensile tests. The results showed that type 321 stainless steels with than Ti/C>10 have very little chance for PA SCC in the vicinity of the weldment.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.