Microstructure and Machine Properties of Co37+xNi34-xAl29(x=0,1,2,3) Ferromagnetic Shape Memory Alloys
Abstract
In this paper, the microstructure, phase structure, hardness and micro-hardness of Co37+xNi34-xAl29(x=0,1,2,3) alloys studied by optical micrograph, X-ray diffraction, hardness test and compressive test. The results show that the phase and phase coexist within Co37+xNi34-xAl29(x=0,1,2,3) alloys. The phase at the grain boundary became coarse with Co content increasing. Meanwhile, the grain size of alloy decreases with Co content increasing. The hardness of Co-Ni-Al alloy decrease first and then increase with Co content rising. The micro-hardness of and phase in Co38Ni33Al29 alloy is 454 HV and 713 HV, respectively.
Keywords
Co-Ni-Al, Magnetic shape memory alloy, Microstructure, Micro-hardness
DOI
10.12783/dtmse/icmsea/mce2017/10820
10.12783/dtmse/icmsea/mce2017/10820
Refbacks
- There are currently no refbacks.