Abstract
Phase equilibria at 600 and 800°C and magnetic properties of some selected alloys in the low Ga portion of the Mn–Ga–Cu ternary system were investigated. It was clarified that the α-fcc (γMn, Cu) and β-bcc (δMn, Cu3Ga) phase exist in a wide composition range along the Ga–Cu side at 800°C, while a very stable ternary compound, τ2 (Cu5Ga3Mn4, hP12), appears in the center of the low Ga region at 600°C. It was also confirmed that all the β phase specimens quenched from 800°C martensitically transform to the 2H, 2M or 6M phase with high density of stacking faults. In the Mn–19.0Ga–25.8Cu (at.%) martensite alloy followed by aging at 400°C, a high coercivity of 11.7kOe was detected, which may have resulted from the dispersion of the metastable ferrimagnetic Mn3Ga-D022 phase during the aging treatment.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
