TY - GEN
T1 - Development of Fe-Ga-Al based alloys with large magnetostriction and high strength by precipitation hardening of the dispersed carbides
AU - Takahashi, Toshiya
AU - Okazaki, Teiko
AU - Furuya, Yasubumi
PY - 2009
Y1 - 2009
N2 - (Feo80Ga0.15Al0.05)99X 0.5C0.5 [at.%] (X=Zr, Nb and Mo) alloys were developed in order to enhance the magnetostriction as well as strength by carbide reaction X.-C. Carbide precipitation phases of XC were observed by XRD and laser-microscope in the arc-melted alloys. As a result, (Feo80Ga 0.15Al0.05)99Zr0.5C0.5 alloys showed maximum magnetostriction λmax=134ppm and its tensile strength σB=832MPa. These alloys showed a transgranular fracture. It will be considered to cause the increase of strength due to the precipitation of carbide. Before now, the polycrystalline Galfenol with such a high tensile strength more over 800MPa as well as large magnetostriction over 100 ppm has not yet been reported.
AB - (Feo80Ga0.15Al0.05)99X 0.5C0.5 [at.%] (X=Zr, Nb and Mo) alloys were developed in order to enhance the magnetostriction as well as strength by carbide reaction X.-C. Carbide precipitation phases of XC were observed by XRD and laser-microscope in the arc-melted alloys. As a result, (Feo80Ga 0.15Al0.05)99Zr0.5C0.5 alloys showed maximum magnetostriction λmax=134ppm and its tensile strength σB=832MPa. These alloys showed a transgranular fracture. It will be considered to cause the increase of strength due to the precipitation of carbide. Before now, the polycrystalline Galfenol with such a high tensile strength more over 800MPa as well as large magnetostriction over 100 ppm has not yet been reported.
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M3 - Conference contribution
AN - SCOPUS:70449595774
SN - 9781605111018
T3 - Materials Research Society Symposium Proceedings
SP - 175
EP - 180
BT - Materials Research Society Symposium Proceedings - Materials and Devices for Smart Systems III
T2 - Materials and Devices for Smart Systems III - 2008 MRS Fall Meeting
Y2 - 1 December 2008 through 4 December 2008
ER -