Page 38 - 《摩擦学学报》2020年第5期

第 40 卷 第 5 期 摩 擦 学 学 报 Vol 40 No 5
2020 年 9 月 Tribology Sept, 2020

DOI: 10.16078/j.tribology.2020023

回火温度对20Cr13不锈钢液固两相流冲刷

腐蚀性能的影响

1
1,2*
李 平 , 魏建华 , 宋一辰 1
(1. 河南理工大学 材料科学与工程学院，河南 焦作 454003;
2. 中国科学院兰州化学物理研究所 固体润滑国家重点实验室，甘肃 兰州 730000)

摘 要: 对20Cr13不锈钢经过1 030 ℃淬火后在不同温度下进行回火处理，分析了回火温度对20Cr13不锈钢组织硬
度的影响，采用自制的旋转冲刷腐蚀试验机研究了在0.5M H 2 SO 4 液固两相流条件下，回火温度对20Cr13不锈钢冲
刷腐蚀性能的影响，利用扫描电镜观察了试样冲刷腐蚀表面的微观形貌，探讨了其冲刷腐蚀机理. 结果表明：
20Cr13不锈钢经淬火后250 ℃左右回火时硬度最高；经回火处理后20Cr13不锈钢冲刷腐蚀特征表现为腐蚀作用强
于冲刷作用，而冲刷强烈促进腐蚀，冲刷与腐蚀的交互作用占冲刷腐蚀总失重率的80%左右. 随着回火温度的升高，
20Cr13不锈钢组织由马氏体转变为屈氏体、索氏体，碳化物颗粒逐渐长大，腐蚀量增大，冲刷腐蚀总量也增大，250 ℃
左右回火时，20Cr13不锈钢抗冲刷腐蚀性能最佳.
关键词: 20Cr13不锈钢; 回火温度; 液固两相流; 冲刷腐蚀; 交互作用
中图分类号: TH117.3 文献标志码: A 文章编号: 1004-0595(2020)05–0593–08

Effect of Tempering Temperature on Erosion-Corrosion
Performance of 20Cr13 Stainless Steels in Liquid-

Solid Two Phase Flow

1,2* 1 1
LI Ping , WEI Jianhua , SONG Yichen

(1. School of Materials Science and Engineering, Henan Polytechnic University, Henan Jiaozuo 454003, China
2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese
Academy of Sciences, Gansu Lanzhou 730000, China)
Abstract: 20Cr13 stainless steel was quenched at 1 030 ℃ and then tempered at different temperatures. Effect of
tempering temperature on the microstructure and hardness was analyzed. Erosion-corrosion (E-C) performance of
20Cr13 stainless steel in 0.5M H 2 SO 4 slurry containing silica particles was studied by using a home-made rotary erosion
wear tester. The morphologies of the worn surfaces of the samples after E-C test were observed using scanning electron
microscope(SEM), and E-C mechanisms were discussed. The results showed that the hardness of 20Cr13 stainless steel
had the maximum value at tempering temperature of near 250 ℃.The characteristics of E-C for 20Cr13 stainless steel at
different tempering temperatures were as follows: pure corrosion action was larger than pure erosion (wear)，and at the
same time erosion strongly promoted corrosion. The synergistic rate between erosion and corrosion accounted for about

Received 8 February 2020, revised 17 March 2020, accepted 1 April 2020, available online 28 September 2020.
*Corresponding author. E-mail: leeping68@163.com, Tel: +86-13849509905.
The project was supported by the National Natural Science Foundation of China (51275156), Open Project of State Key Laboratory
of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences (LSL-1702) and the Fundamental
Research Funds for the Universities of Henan Province (NSFRF170502).
国家自然科学基金项目(51275156)，固体润滑国家重点实验室开放课题(LSL-1702)，河南省高校基本科研业务费专项资金
(NSFRF170502)资助.