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通过对Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe合金进行热处理,研究热处理工艺对该合金的相组成和电阻率的影响以及对氧化膜的厚度、粗糙度、微观形貌及相组成的影响。结果表明,通过热处理改变Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe合金的相组成,热处理后试样的电阻率小幅降低;经850℃固溶热处理后所获微弧氧化膜的厚度和粗糙度最小,分别为48.3和7.45μm;微弧氧化膜微观形貌显示,经750和850℃固溶热处理后的试样,在微弧氧化后,其膜层表面裂纹较少,并且致密;微弧氧化膜主要的组成相为金红石相TiO_2和锐钛矿相TiO_2。
The effects of heat treatment process on the phase composition and resistivity of the alloy and the effects of the thickness, roughness, morphology and phase of the oxide film on the Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe alloy were studied. The composition of the impact. The results show that the phase resistivity of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe alloy decreases slightly after heat treatment. The micro-arc oxidation film obtained after solution heat treatment at 850 ℃ The thickness and roughness are the smallest, which are 48.3 and 7.45μm, respectively. The micro-arc oxidation micro-morphology shows that after the micro-arc oxidation, the samples after solution heat treatment at 750 and 850 ℃ have less surface cracks, The micro-arc oxidation film is mainly composed of rutile TiO 2 and anatase TiO 2.