收录:
摘要:
Tests including the constant load tensile, three point bending and hydrogen induced cracking (HIC) are executed to evaluate the comprehensive properties of the 15CrMoR(H) with new smelting process in saturated hydrogen sulfide (H2S) according to NACE and National Standard. By analyzing and fitting the results of constant load tensile test, the stress-life mathematical model of this material is given. Results show that the stress corrosion threshold of the constant load tensile is 0.7R(el) (252MPa).The nominal stress of three point bending S-C is higher than 4.5 R-el (1620MPa). Results of HIC test show that the crack length rate CLR is 4.40%, the crack thickness rate CTR is 0.87% and the crack sensitive rate CSR is 0.04%. According to EFC standard, the safety margin is 3.4, 3.4 and 37.5 times respectively. All the experimental results show that the 15CrMoR(H) material has excellent H2S stress corrosion cracking resistance properties.
关键词:
通讯作者信息:
来源 :
APPLIED MECHANICS AND MATERIALS II, PTS 1 AND 2
ISSN: 1660-9336
年份: 2014
卷: 477-478
页码: 14-,
语种: 英文
归属院系: