Friction and wear performance of arc ion plated TiAlN film on gun steel surface
JIN Hao
LI De-yuan
CHANG Zhan-he
WANG Xin
LIU Gao
Abstract：In order to enhance the wear resistance of PCrNi3Mo steel, the Ti0.7Al0.3N and Ti0.5Al0.5N films were deposited on its surface with the arc ion plating technology, and the microstructures and morphologies of as-deposited and worn films were analyzed. The results show that the two films belong to the columnar structure with fine grain size. The hardness of Ti0.7Al0.3N and Ti0.5Al0.5N films increases by 4.75 and 4.22 times than that of PCrNi3Mo steel, while the elasticity modulus increases by 88% and 84% than that of PCrNi3Mo steel, respectively. In addition, the stable friction coefficient of Ti0.7Al0.3N film is lower, and the two films have the significant antifriction and antiwear effect. The wear mechanism of PCrNi3Mo steel is severe adhesive wear, while that of two films belongs to slight adhesive wear. Due to the brittle fracture, the spalling zones with bigger area locally form on the Ti0.5Al0.5N film, and the main reason for the local cracking and failure is that the supporting force supplied by the PCrNi3Mo steel with low hardness to the films is small.
Keywords：PCrNi3 Mo steelarc ion platingTiAlN filmhardnesselasticity modulusfrictionwearcracking
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 43-47 )