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某型号钻铤井上泥浆环境中工作时长152小时,内壁及端面出现缺口。对失效件进行理化分析,确定该钻铤材料硬度偏低,表面缺陷为收外力撞击所致。
钻铤表面异常原因分析
【摘 要】
：
某型号钻铤井上泥浆环境中工作时长152小时,内壁及端面出现缺口。对失效件进行理化分析,确定该钻铤材料硬度偏低,表面缺陷为收外力撞击所致。
【机 构】
：
航天精工股份有限公司
【出 处】
：
中国金属通报
【发表日期】
：
2021年16期
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