Material for high-speed airframe are typically selected such that high ablation resistance is maintained on the material surface while high pull-strength is maintained inside the material. However, in case of application to extremely severe condition, the material should have better mechanical properties. Thus, heat treatment or surface treatment is utilized to improve the mechanical properties. This study is conducted as a preliminary research to improve the mechanical properties of vehicle material considering the frictional heat produced during high-speed vehicle is in motion. In this study, Inconel 625 alloy, widely used material for the application of high-speed air vehicle, is ion nitriding processed and then mechanical property test and wear test on this material are conducted consequently. As results, mechanical properties such as tensile strength, yield strength and hardness are increased, and also wear rate is increased at particular condition.
목차
Abstract 1. 서론 2. 실험방법 2.1 시편 제작 2.2 인장시험 2.3 경도시험 2.4 마모시험 3. 실험 결과 및 고찰 3.1 인장 시험 결과 3.2 경도 시험 결과 3.3 마모시험 분석 4. 결론 References
키워드
Plasma Ion Nitriding(이온질화)Nickel Alloy(니켈 합금)Adhesive(응착마모)Debris(마모분)Vickers Hardness(비커스 경도)Wear Rate(마모율)Friction Coefficients(마찰계수)
저자
최인표 [ Inpyo Choi | Member, Seoul Center, Defense Agency for Technology and Quality ]
Corresponding Author