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采用喷射成形和锻造工艺制备了Al-8.5Fe-1.3V-1.7Si合金,通过金相、扫描电镜和力学性能测试等实验,对锻件组织和性能进行了分析.结果表明:"闷车+包套锻造"工艺对喷射成形Al-8.5Fe-1.3V-1.7Si合金坯件的致密化效果好于用自由锻造和包套锻造致密化的合金,采用该工艺可以制备出组织和性能优良的耐热铝合金材料."闷车+包套锻造"锻件在室温下的抗拉强度(σb)达到407 MPa,屈服强度(σ0.2)达到344MPa,延伸率(δ5)为7.6%;在315℃,锻件的σb,σ0.2,δ5分别为222,216 MPa,7.2%.

参考文献

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