Influence of Tempering Time on The Microstructure and Mechanical Properties of Cual9fe4 Alloy
Minh Quang Chau†, Anh Tuan Vu‡,*, Tan Sang Le‡†,* Van Thi Mai‡, Duong Nam Nguyen‡, Xuan Truong Doan‡, Hung Chien Do‡‡,*, Dinh Tuyen Nguyen‡‡
†Faculty of Mechanical Technology, Industrial University of Ho Chi Minh city, Ho Chi Minh city, Vietnam
‡School of Mechanical Engineering, Viet Nam Maritime University
‡†Institute of Engineering, Ho Chi Minh city University of Technology (HUTECH), Ho Chi Minh city, Vietnam
‡‡Institute of Mechanical Engineering, Ho Chi Minh city University of Transport, Ho Chi Minh city, Vietnam
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This paper presents the results of research on the influence of tempering temperature on the microstructure and mechanical properties of the alloy Cu9Al4Fe. The study results showed that the tempering temperature at 350oC in 03 hours for hardness is the best (104HRB). The microstructure show that phase little γ2 appeared fine dispersed within the matrix which increases abrasion resistant alloys. Moreover, the microstructure has also intermetallic phases finely dispersed. According to this heat-treatment process, the fine microstructure was obtained, the inter-metallic phase and Fe (δ) were appear, therefore, reduces the grain size and increases the wear resistance of this alloy.