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利用原位反应制备TiB+TiC增强Ti-6A1-4V基复合材料及基体合金,对其进行锻造及热处理后,进行了室温及高温拉伸试验,并观察了其组织和断口形貌.结果表明:复合材料的室温抗拉强度与基体合金相比有提高,且随着增强相含量的增多而提高,但材料的伸长率却不断降低;复合材料的高温抗拉强度提高比较明显,但温度超过500 C后,增强相的高温强化作用降低;同时随着温度的升高,基体组织对复合材料的高温强度影响作用不断降低.

参考文献

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