Ferromagnetic shape memory alloy with ultra high strength and its preparation method

An ultra-high-strength, memory alloy technology, applied in the field of metal alloys, can solve problems such as low restoring force, limiting the development of material engineering applications, and high brittleness of Ni-Mn-Ga bulk materials
CN102787258AInactive Publication Date: 2012-11-21DALIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN UNIV
Publication Date
2012-11-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a ferromagnetic shape memory alloy with ultra high strength. The alloy comprises the following chemical components expressed in atomic percent: 52 parts of Ni, 29 parts of Mn, 15 parts of Ga and 4 parts of Cu; the alloy has fracture strength of 3171 MPa and saturation magnetization of 51 emu/g; and the microstructure of the alloy is tetragonal structured non-modulated T martensite. The Ni52Mn29Ga15Cu4 alloy prepared in the invention has the characteristics of high fracture strength and great toughness.
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Claims

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