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Microstructure and Hardness of Subzero Quenched and Heat Treated Ti-6Al-4V Alloy

机译:零以下淬火和热处理的Ti-6Al-4V合金的组织和硬度

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Titanium is one of the most important materials nowadays with promising lightweight demanding applications. However, despite its high strength-to-weight ratio, high temperature stability and high corrosion resistance, it has relatively low hardness. It is shown in this work that enhanced hardness values could be obtained for Ti-6A1-4V Alloy after heat treatment consisting of subzero quenching in a medium made up of dry ice and alcohol, followed by an aging treatment. The proposed heat treatment resulted an increase of 25% in the hardness of the alloy, compared to 5% reported in literature.
机译:钛是当今最重要的材料之一,具有对轻量级应用的希望。然而,尽管其具有高的重量重量比,高温稳定性和高耐腐蚀性,但是其具有相对较低的硬度。这项工作表明,在由干冰和酒精组成的介质中进行零度以下淬火的热处理后,Ti-6A1-4V合金可获得更高的硬度值,然后进行时效处理。与文献报道的5%相比,建议的热处理使合金的硬度提高了25%。

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