Texture Studies on Die-Upset Nd-Lean Nd-Fe-(Cu)-Ga-B Alloy

Melt-spun Nd-lean Nd_xFe_93.5-xGa_0.5B₆ (x = 9, 10.5 and 12) alloys were die-upset, and the Nd₂Fe₁₄ B grain texture in the die-upset samples were investigated. The effect of Cu-addition on the texture of the die-upset Nd-lean Nd_xFe_93.5-xGa_0.5B₆ (x = 9, 10.5, and 12) alloys was studied, and the texture formation mechanism operating in these alloys was investigated. The die-upset Nd-lean Nd_xFe_91.5-xCu₂Ga_0.5B₆ (x = 9 and 10.5) alloys showed negligible texture even with Cu-addition. However, the Cu-added Nd_xFe_91.5-xCu₂Ga_0.5B₆ (x = 12) alloy showed an appreciable texture, and the texture increased with increasing the die-upset temperature. The Cu-containing Nd_xFe_91.5-xCu₂ Ga_0.5B₆ (x = 12) alloy developed the texture by a basal plane slip deformation during die-upsetting.