石油钻井用钢丝绳单丝断裂机理的研究

• 作 者: 刘云旭 赵振波 季长涛 朱启惠
• 机 构: 吉林工学院
• 出 处: 金属制品
• 发表日期: 1995年03期
• 关键词: 钻井用钢丝绳 单丝 淬火硬化 断裂机理 脆性断口 摩擦发热 钢丝 钻井现场 钢丝绳 断口

从钻井现场取回多根石油钻井用钢丝绳单丝断裂试样进行了分析研究．结果表明，断口处均具有程度不同的磨损，断面为冰糖状脆性断口，均具有很高的硬度，显微组织为形态不同的高碳淬火马氏体．得出单丝断裂的原因是钢丝绳工作时部分钢丝局部承受高压高速摩擦发热发生相变自淬火造成的。

From the drilling site to retrieve more than one oil drilling wire rope rupture monolayers were analyzed. The results show that all the fractures have different degrees of wear and tear, and the fractures have the shape of ice-candy brittle fracture. Both of them have very high hardness and the microstructure is high-carbon quenched martensite with different morphologies. The reason that the monofilament fracture is obtained is that the part of the steel wire subjected to the high-pressure, high-speed frictional heating partially undergoes the phase change self-quenching when the wire rope works.