30CrMo合金钢的冲蚀磨损性能研究  

Experimental Study on Erosion Wear of 30CrMo

作　　者：张继信[1] 樊建春[1] 张来斌[1] 姜心[1] 谢永金[2] 吴汉川[3] 

机构地区：[1]中国石油大学(北京)机械与储运工程学院,北京102249 [2]中国石油化工股份有限公司江汉油田分公司,湖北潜江433124 [3]中国石化集团江汉石油管理局第四石油机械厂,湖北荆州434024

出　　处：《润滑与密封》2012年第4期15-18,共4页Lubrication Engineering

基　　金："十二五"国家科技重大专项(2011ZX05048)

摘　　要：采用自制的喷射型冲蚀磨损试验机,研究在水力压裂工况下,高速携砂液对高压管汇材料30CrMo的冲蚀磨损作用,分析冲蚀磨损机制以及冲蚀角度和冲蚀速度对30CrMo合金钢冲蚀性能的影响。结果表明,30CrMo合金钢在高速粒子冲击下,其耐冲蚀磨损性能表现一般,属于典型的金属塑性材料;冲蚀角度为30°时,30CrMo的冲蚀磨损量最大;30CrMo的磨损机制与冲蚀角度有直接的关系,冲蚀角度小于30°时,冲蚀磨损机制以切削模型为主,大于30°时以局部塑性变形模型为主;冲蚀磨损量随冲击速度增加而显著增加,在高速冲击时,30CrMo钢的冲蚀磨损较为严重。A new type of erosion wear test machine was developed to simulate the erosive wear behavior of 30CrMo high pressure pipelines caused by the multiphase fluid with sands in the fracturing operation.The erosion failure mechanism of 30CrMo was analyzed by scanning electron microscope（SEM）,and the effects of impact angle and impact velocity on the erosion wear of 30CrMo were studied.Results show that the erosion wear rule of 30CrMo is a kind of typical plastic metal in fracturing experimental conditions with particles at high impact velocity,and the maximum erosion mass loss of 30CrMo approximately turns up at the impact angle of 30°.There are different erosion failure mechanisms of 30CrMo at different impact angle.The impact wear mechanism of 30CrMo is mainly cutting model at small impact angle,and mainly local plastic deformation model at large impact angle.The erosion wear mass loss is increased with the increasing of impact velocity,and 30CrMo has severe erosion wear at high impact velocity.

关 键 词：30CrMo 冲蚀磨损 冲蚀角度 冲蚀速度 

分 类 号：TG172.85[金属学及工艺—金属表面处理]