新型高钢级超深井用油套管强韧性研究
Hot Working Technology(2022)
Abstract
针对一种新型高钢级超深井用油套管,进行了力学性能和组织分析研究,并依据国内外相关标准评判了该新型油套管的力学性能.结果表明,新型油套管微观组织为Fe-Cr-Ni固溶体,添加合金元素Mo、V等可有效调控油套管的韧性和强度;新型油套管具有优良的冲击韧性和强度,0℃纵向冲击功达到115 J,韧脆转变温度为-68℃,0℃横向冲击功为99 J,韧脆转变温度为-65℃;室温纵向屈服强度为915 MPa、横向屈服强度为1012 MPa.
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