中国铸造2009，Vol.6Issue(1)：32-36,5.
Study on wear resistant cast B-containing 1Cr18Ni9Ti stainless steel
Study on wear resistant cast B-containing 1Cr18Ni9Ti stainless steel
Kuang Jiacai 1Jiang Zhiqiang 2Zhang Shiyin 3Ye Chang 1Liu Qicheng1
作者信息
- 1. Department of Material Science and Engineering, Changsha University of Science and Technology, Changsha 410076, China
- 2. School of Electromechanical Engineering, Zhengzhou Institute of Aeronautics, Zhengzhou 450015, China
- 3. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
- 折叠
摘要
Abstract
The developed 1Cr18Ni9Ti austenitic stainless steel containing 1.63 wt.%B have been characterized by X-ray diffraction (XRD), electron probe microanalyzer (EPMA), optical microscopy (OM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and Vickers microhardness measurement. The microstructural evolution and property of high boron stainless steel after solution treatment at the temperature of 1050℃ are also investigated. The results show that the main compositions of borides are Fe, Cr and B, and with small amount of Ni, Mn and C elements. Silicon is insoluble in the borides. The hardness of borides is over 1,500 HV. It has been found that borides do not decompose during solution treatment, but part of borides dissolves into the matrix. The effect of increasing the solubility of boron element in the austenitic matrix favours the hardness enhancement by 8.54%. High boron stainless steel has excellent wear resistance in corrosive environment. Lifetime of transfer pipe made of high boron-containing stainless steel is 1.5-1.8 times longer than that of boron-free 1Cr18Ni9Ti stainless steel.关键词
1Cr18Ni9Ti austenitic stainless steel/ boron/ bodde/ corrosive wearKey words
1Cr18Ni9Ti austenitic stainless steel/ boron/ bodde/ corrosive wear分类
矿业与冶金引用本文复制引用
Kuang Jiacai,Jiang Zhiqiang,Zhang Shiyin,Ye Chang,Liu Qicheng..Study on wear resistant cast B-containing 1Cr18Ni9Ti stainless steel[J].中国铸造,2009,6(1):32-36,5.
