The Effect of Vanadium Content Coupling with Heat Treatment Process on the Properties of Low-Vanadium Wear-Resistant Alloy

Materials

Chong Chen¹  Liujie Xu¹  Feng Mao¹  Cheng Zhang¹  Mei Xiong¹  Shizhong Wei¹  Xiaodong Wang¹  Tao Jiang² 

[1] National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang 471003, China;School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China;

关键词: abrasive wear;    vanadium carbide;    heat treatment;    high chromium cast iron;   

DOI  :  10.3390/ma15010285

来源: DOAJ

【 摘 要 】

The development of wear-resistant materials with excellent properties is of great research value in the manufacturing industry. In this paper, a new kind of low-vanadium wear-resistant alloy was designed and characterized to unveil the influence of vanadium content coupling with heat treatment on the microstructure, hardness, and abrasive wear property. The performances of commercial high chromium cast iron (HCCI) and the new low-vanadium wear-resistant alloy are compared. The alloy with 3 wt.% vanadium quenched at 900 °C and tempered at 250 °C, possessing VC, Mo₂C, and M₇C₃ distributed in the martensite matrix, displayed a wear resistance two times better than the HCCI. The results showed that the increase of vanadium content from 0.98 wt.% to 3.00 wt.% resulted in a decrease in the size of M₇C₃ and a more homogeneous distribution of M₇C₃. VC with a bimodal distribution is effective for impeding grooving or indenting by abrasives because of their high hardness, which plays a vital role in improving the wear resistance of low-vanadium wear-resistant alloy.

【 授权许可】

Unknown