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发明公开
CN109338166A 一种Al-Er-B耐热合金单丝及其制备方法 审中-实审

一种Al-Er-B耐热合金单丝及其制备方法
摘要：
本发明提供了一种Al-Er-B耐热合金单丝及其制备方法，合金单丝由下述重量百分比的合金元素制成：B：0.01～0.02％，Er：0.08～0.15％，Si:≤0.06％，Fe:≤0.2％，(V+Ti+Cr+Mn)≤0.012％，余量为铝和不可避免的其它杂质。该合金中加入微量合金元素，添加微量稀土Er元素对合金进行改性并优化调整合金元素含量，保证了合金力学性能，提高了导电率，单丝导电率≥62.3％IACS，20℃、抗拉强度≥161MPa、延伸率为2.5％、230℃保温1h强度残存率≥90％、满足了长期运行温度为150℃的要求。
摘要（英）：

The invention provides an Al-Er-B heat-resisting alloy filament and a preparation method thereof. The alloy filament is prepared from the following alloy elements in percentage by weight: 0.01%-0.02%of B, 0.08%-0.15% of Er, less than or equal to 0.06% of Si, less than or equal to 0.2% of Fe, less than or equal to 0.012% of (V+Ti+Cr+Mn), and the balance of aluminum and other inevitable impurities.Trace alloy elements are added into an alloy, the alloy is modified by adding trace rare earth Er elements, and the alloy element contents are optimized and adjusted. The alloy mechanical propertiesare guaranteed, the electric conductivity is improved, the filament electric conductivity is greater than or equal to 62.3% IACS at 20 DEG C, the strength of extension is greater than or equal to 161MPa, the ductility is 2.5%, the strength survival rate is greater than or equal to 90% after heat preservation for 1h at 230 DEG C, and the requirement of 150 DED C of a long-time operational temperature is met.

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