Effect of Boron and Cerium on Microstructures and Properties of Cu-Fe-P Alloy

• Published in: Journal of rare earths Vol. 24; no. 5; pp. 602 - 606
• Main Author: 陆德平 王俊 陆磊 刘勇 谢仕芳 孙宝德
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2006; Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330029, China%State Key Laboratory of Metal Matrix Composite, Shanghai Jiaotong University, Shanghai 200030, China%Institute of Applied Physics, Jiangxi Academy of Sciences, Nanchang 330029, China; State Key Laboratory of Metal Matrix Composite, Shanghai Jiaotong University, Shanghai 200030, China
• Subjects: boron; cerium; Cu-Fe-P alloy; Cu-Fe-P合金; microstructure; property; rare earths; TG146.14; TG425.1; 显微结构; 稀土元素; TG425.1; TG146.14; microstructure; cerium; Cu-Fe-P alloy; property; boron; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/s1002-0721(06)60172-5

The effects of B and Ce on the removal of inclusions, microstructures, and properties of Cu-Fe-P alloys were studied. Certain impurity elements and the microstructures, mechanical properties, and conductivity of four experimental alloys, Cu-0.22Fe-0.06P, Cu-0.22Fe-0.06P-0.05Ce, Cu-0.22Fe-0.06P-0.02B, and Cu-0.22Fe-0.06P-0.05Ce-0. 02B （ %, mass fraction）, were tested and analyzed. Results show that on one hand, B and Ce have a remarkable function of removing S, Pb, and Bi from copper alloys ; on the other hand, the recrystallization temperature of the Cu-Fe-P alloy is considerably increased by adding trace B and Ce, resulting in the combined strengthening effect of precipitation hardening and cold work hardening after cold working and aging, while the negative effect of B and Ce on conductivity is slight. Therefore, a good combination of high strength and conductivity is achieved.