Effect of B and Cr on Mechanical Properties and Magnetostriction of Iron-Gallium Alloy

摘要

Effects of B and Cr additions on magnetostriction and the mechanical properties of polycrystalline Fe_(83)Ga_(17) alloy were investigated. Small addition of B increased magnetostriction of Fe_(83)Ga_(17) alloy slightly, and improved the room temperature ductility and tensile strength significantly. The elongation and tensile strength of the (Fe_(83)Ga_(17))_(99)B_1 alloy increased to 3.56 percent and 548 MPa compared with that of Fe_(83)Ga_(17) alloy respectively. The Cr addition was shown to improve the room temperature mechanical properties of Fe_(83)Ga_(17) alloy beneficially. The maximum magnetostriction of (Fe_(83)Ga_(17))_(98)Cr_2 alloy was 70 X 10~(-6). The influences of B and Cr additions on the fracture mode of Fe_(83)Ga_(17) alloy were also studied in this paper.