Investigation of dry sliding wear properties of boron doped powder metallurgy 316L stainless steel
Investigation of dry sliding wear properties of boron doped powder metallurgy 316L stainless steel
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DOI：
10.1016/j.matdes.2010.02.053
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发表时间：
2010-09
影响因子：
8.4
通讯作者：
D. Uzunsoy
中科院分区：
文献类型：
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作者：
D. Uzunsoy
本文研究了添加元素硼的粉末冶金316 L不锈钢的磨损行为，目的是获得上级机械性能。使用掺杂有元素硼的PM 316L不锈钢的销试样和硬度为180 HV 10的钢盘试样进行样品的磨损试验。由于液相形成，通过添加硼实现致密化，达到理论密度的95%，其中0.6wt.%硼添加硼的加入提高了合金的硬度、抗拉强度和屈服强度等力学性能。添加0.6wt.%的复合剂后，PM 316L不锈钢的磨损率从4.3×10 − 6 mm 3/Nm降低到0.8×10− 6 mm 3/Nm元素硼磨粒引起的分层磨损占主导地位的样品。磨损表面的扫描电子显微镜观察显示，在烧结条件下发生塑性变形与表面层的分层。
This paper describes wear behavior of powder metallurgy (PM) 316L stainless steel with additions of elemental boron with the aim of producing superior mechanical properties. The wear test of the samples is conducted using a pin specimen of PM 316L stainless steel doped with elemental boron and a steel disc specimen with hardness of 180 HV10. Densification achieved with boron addition due to the liquid phase formation up to 95% of theoretical density with 0.6wt.% boron addition. Most mechanical properties such as hardness, tensile strength and yield strength were improved with boron addition. The wear rate of PM 316L stainless steel decreased from 4.3×10−6to 0.8×10−6mm3/Nm with the addition of 0.6wt.% elemental boron. The abrasive-induced delamination wear dominated at the samples. Scanning electron microscopy observations of the worn surfaces revealed that plastic deformation occurred with delamination of surface layers in the sintered conditions.