Combustion synthesis and characterization of Fe-Ni alloys

International Journal of Self-Propagating High-Temperature Synthesis - 2011
Y. H. Kang1,2, L. Wang1,2, L. C. Fu2, J. Yang2, Q. L. Bi2, W. M. Liu2
1Graduate University of Chinese Academy of Sciences, Beijing, China
2State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China

Tóm tắt

A simple and inexpensive method for combustion synthesis of the series of Fe-x%Ni martensite alloys (x = 15, 20, 23, 25 at %) was developed. XRD, SEM, and TEM examinations showed that all the products were composed of lath martensite and retained austenite. With increasing nickel content, the hardness and yield strength decreased gradually, which originated from the differences in phase compositions and micro structural characteristics. All the products exhibited high strength and good ductility, especially the Fe-15%Ni alloy which exhibited (in compression tests) high yield strength (up to 1300 MPa) at a good ductility (∼30%).

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International Journal of Self-Propagating High-Temperature Synthesis

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