Mechanical Properties of Ti-6Al-4V Alloy Using oft-Grade Sponge Titanium as Raw Material
Mechanical Properties of Ti-6Al-4V Alloy Using oft-Grade Sponge Titanium as Raw Material
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DOI：
10.2355/tetsutohagane.98.491
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发表时间：
2012-09-01
影响因子：
0.3
通讯作者：
Sato, Eiichi
中科院分区：
文献类型：
--
作者：
Takahashi, Kyo;Sato, Eiichi
本文研究了杂质元素对Ti-6Al-4V合金力学性能的影响。氧和铁的杂质含量在0.1到0.7%之间变化。随着氧含量的增加，拉伸强度和抗拉强度增加，伸长率降低，截面积减小，夏比冲击强度降低。此外，发现日本工业标准要求的杂质水平保持在0.3% O和0.7% Fe的质量。最后，通过一系列的实验，阐明了以优质海绵钛为原料制备的Ti-6Al-4V合金的疲劳强度和扣押特性。结果表明，含铁Ti-6Al-4V合金的力学性能与常规Ti-6Al-4V合金相当。
The effect of impurity elements on the mechanical properties of Ti-6Al-4V alloy is presented in this paper. Impurity levels of oxygen and iron were varied between 0.1 and 0.7%. Tensile and proof strength increased and elongation, cross-sectional area reduction, and Charpy impact strength decreased as the oxygen content increased. Furthermore, it was found that Japanese Industrial Standards requirements were maintained up to impurity levels of 0.3% O and 0.7% Fe by mass. Finally, the fatigue strength and seizure characteristics of Ti-6Al-4V fabricated from oft-grade sponge titanium as the raw material was clarified by a series of experiments. The results showed that mechanical properties of Fe-bearing Ti-6Al-4V alloy are comparable to those of conventional Ti-6Al-4V alloy.