论文部分内容阅读
采用材料组织分析法以及力学性能测试对不同热处理后V150钻杆材料的组织与性能进行研究。结果表明,热处理可提高V150钻杆材料的抗氢致开裂(HIC)性能;经900℃×90 min+水淬+735℃×120 min+空冷热处理的试样比经过其他热处理及不进行热处理的试样具有更加优异的综合性能。随氢致开裂试验时间延长,V150钻杆材料的抗HIC性能减弱,主要腐蚀产物为Fe和Mn的硫化物。带状组织及夹杂是导致材料发生氢致开裂的主要原因,Cu,Ni等元素可以提高材料的抗HIC性能。
The microstructure and properties of different materials after heat treatment of V150 drill pipe were studied by using the method of material microstructure analysis and mechanical property test. The results show that the heat treatment can improve the resistance to hydrogen induced cracking (HIC) of V150 drill pipe material. The samples treated with 900 ℃ × 90 min + water quenching + 735 ℃ × 120 min + air-cooled heat treatment are better than those treated with other heat treatment and without heat treatment With more excellent overall performance. With the prolonged hydrogen cracking test, the anti-HIC performance of the V150 drill pipe material is weakened, and the main corrosion products are sulfides of Fe and Mn. Banding and inclusions are the main reasons leading to hydrogen-induced cracking of the material. Elements such as Cu and Ni can improve the anti-HIC performance of the material.