采用球磨制备Mo-0.1Zr粉末,经压制成型、预烧、高温烧结和真空热处理后,制备抗拉强度超过650MPa、伸长率大于30％的高强韧Mo-0.1Zr合金,研究真空热处理对合金性能与显微组织的影响.结果表明:经高温烧结后,Mo-0.1Zr合金与纯Mo相比性能提高不明显,断口形貌呈明显的沿晶脆性断裂特征；但经真空热处理后,Mo-0.1Zr合金的性能显著提高,抗拉强度提高了40％、伸长率从7.3％提高到31.2％,合金断口也由沿晶脆性断裂转变为穿晶韧性断裂,且部分晶粒呈韧性撕裂特征.真空热处理温度对合金性能的影响很大,真空热处理温度过高容易使晶粒长大,导致性能提高程度下降;而真空热处理温度过低难以起到消除晶体缺陷的作用,对合金性能提高有限.
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