【作者】 敖晖； 李平； 曲选辉；

【Author】 AO Hui, LI Ping, QU Xuan-hui (State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China)

【机构】 北京科技大学材料科学与工程学院新金属材料国家重点实验室；

【摘要】 采用光学显微镜、静态冲击法磁性能测试设备等研究了锻造工艺对铁镍磁温度补偿合金饱和磁感应强度Bm和磁温度系数△B/△T0-100℃的影响规律。采用不同锻造比对真空熔炼的铸锭进行锻造,比较了锻造处理以及不同变形量对材料磁性能的影响规律。实验结果表明:铸造样品经锻造后可提高其饱和磁感应强度Bm和磁温度系数△B/△T0-100℃;且随变形量的增加,合金的饱和磁感应强度Bm呈先增加后降低的趋势,并在KL=3.29时达到最大值,分别为Bm(0℃)=0.616 9 T,Bm(30℃)=0.475 9 T,Bm(100℃)=0.0394 T,而磁温度系数△B/ △T0-100℃始终呈单调递增的趋势。更多还原

【Abstract】 Influence of forge technique on the performance of Fe-Ni magnetic temperature compensation alloy was studied by optical microscopy and magnetic property test. Cast ingots prepared by vacuum melting were forged in different forging ratio (KL). Then the magnetic performance of samples was compared. The results show that Bm decrease slightly after a increase and tends to the peak at Bm(0℃) = 0. 616 9 T, Bm (30℃) = 0. 475 9 T as KL = 3. 29, while △B/△T0-100℃ decreases steadily.更多还原