| Summary: | 碩士 === 國立虎尾科技大學 === 機械設計工程研究所 === 103 === Austempered Ductile Iron (ADI) is a material with combined matrix of acicular ferrite and carbon-rich austenite, which is transformed during austemper process of ductile iron. The material possesses properties of high strength, hardness, good toughness, high strength-to-weight ratio, low cost, and less density, which has great potential value in application and is widely used in automotive, construction and agricultural industry. This study aims to investigate the tribological properties of ADI under various test methods and lubricants. A plan of experiment is generated through Taguchi’s technique and is conducted by multi-purpose friction and wear tester. The testing parameters include contact load, sliding speed, slide-roll ratio, surface roughness, and temperature. Experiment was designed using Taguchi’s method and by combining with Grey Relation Analysis, a mathematical model is built by friction coefficient, contact temperature, and wear. Then, build a database of ideal combination of parameters systematically based on the mathematical model, and verify the effectiveness of this combination of parameters. The wear surface morphology were investigated using optical microscope and SEM.
|
|---|
