In one aspect, a method of computationally designing a near-α transformation-induced plasticity (TRIP) titanium (Ti) alloy is provided. A thermodynamic database of Ti alloys is created. The data of the thermodynamic database is tailored for martensitic transformations in the Ti alloys near room temperature. Then an overall composite of the near-α TRIP Ti alloy may be obtained by adjusting a reference overall composite of a reference near-α Ti alloy based on the tailored data in the thermodynamic database. In certain embodiments, an annealing temperature of the near-α TRIP Ti alloy may be determined such that a MSσ(ct) temperature of the near-α TRIP Ti alloy is about room temperature. In certain embodiments, the near-α TRIP Ti alloy is Ti-8Al-1V-1Sn-1Zr-0.6Mo-0.9Fe-0.1Si-0.1O by weight percentage. In certain embodiments, the near-α TRIP Ti alloy may be cooled at a cooling rate greater than 20° C./min after annealing to inhibit formation of grain-boundary α (GB-α) phase.
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机译：在一个方面，提供了一种计算设计近α相转变诱导的可塑性（TRIP）钛（Ti）合金的方法。创建了钛合金的热力学数据库。热力学数据库的数据是为接近室温的Ti合金中的马氏体转变量身定制的。然后，可以基于热力学数据库中的定制数据，通过调整参考近αTi合金的参考整体复合物来获得近αTRIP Ti合金的整体复合物。在某些实施例中，可以确定近αTRIP Ti合金的退火温度，使得近αTRIP Ti合金的M S σ（ct）温度。大约是室温。在某些实施例中，按重量百分比计，近αTRIP Ti合金是Ti-8Al-1V-1Sn-1Zr-0.6Mo-0.9Fe-0.1Si-0.1O。在某些实施方式中，近αTRIP Ti合金可以在退火之后以大于20℃/ min的冷却速率冷却以抑制晶界α（GB-α）相的形成。
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