Secondary recrystallization behavior in the rolled columnar-grained Fe–Ga alloys
作者： Chao Yuan , Jiheng Li , Wenlan Zhang , Xiaoqian Bao , Xuexu Gao
DOI: 10.1016/J.JMMM.2015.04.088
关键词:
摘要: Abstract The secondary recrystallization behavior with temperature increasing from 900 to 1080 °C was investigated in the rolled columnar-grained magnetostrictive Fe–Ga alloy sheets. abnormal Goss grain growth occurred due inhibitory action of NbC Fe–Ga–0.1 at%NbC With at a rate 0.25 °C/min, started below 950 °C. In addition S-induced surface energy effect, sulfur annealing also introduced large number S-rich and Nb-rich precipitates, which retarded boundary migration on surface. found be restricted inside sheet during process when 1000 °C, amount small island-like grains remained S-annealed After final Ar/H 2 processes, precipitates were eliminated, sharp orientation high magnetostriction 245 ppm obtained
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