Published January 1, 2014
| Version v1
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Effects of the substitution of gallium with boron on the physical and mechanical properties of Ni-Mn-Ga shape memory alloys
Creators
- 1. Gazi Univ, Dept Phys, Superconduct & Thermal Anal Lab, Fac Sci, Ankara, Turkey
- 2. Univ Kentucky, Dept Mech Engn, Lexington, KY 40506 USA
- 3. Firat Univ, Dept Phys, Fac Sci, TR-23169 Elazig, Turkey
Description
The effects of the substitution of gallium with boron on the physical, mechanical and magnetic shape memory properties of Ni51Mn28.5Ga20.5-xBx (at.%) (x = 0, 1, 2, 3) polycrystalline alloys are investigated. It has been found that transformation temperatures are decreasing while hardness is increasing with boron addition. B-doping of NiMnGa alloys results in the formation of a second phase that increases its ductility and strength in compression. Moreover, saturation magnetization of austenite is decreasing, while Curie temperature of austenite is increasing with B-doping.
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