H2S Stress Corrosion Cracking of Low Cr Steels in Simulated Oilfield Environment
模拟油田工况条件低Cr钢抗H2S应力腐蚀开裂行为研究

Conferring to NACE TM0177-2005 standard,H2S stress corrosion cracking(SSC)behavior of low Cr steels in the simulated environments of Tarim oilfield was studied with four-point bent test.The results show that no macroscopic and microscopic surface cracks are observed on steel specimens with 0.5 Cr after 720-hour test duration,which presents that the steel with 0.5 Cr has favorable SSC resistance.While to the common steels with 3 Cr and 5 Cr,there exist obviously macroscopic and microscopic cracks on the spec...