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发明授权
CN106363021B 一种1500MPa级钛合金棒材的轧制方法 有权

一种1500MPa级钛合金棒材的轧制方法
摘要：
本发明公开的一种1500MPa级钛合金棒材的轧制方法，具体按照以下步骤实施：步骤1、选择Ti‑6Al‑4Mo‑4Zr‑2Sn‑2Cr‑1Fe‑1Nb棒坯；步骤2、于大气气氛下，采用加热炉加热步骤1中选择的棒坯，并对其进行保温处理；步骤3、将经步骤2处理后得到的棒坯放置于在横列式轧机上，经加热轧制至成品棒坯；步骤4、将经步骤3轧制后的成品棒坯，依次经固溶、时效处理，最后矫直磨削加工至钛合金成品棒材。本发明一种1500MPa级钛合金棒材的轧制方法，轧制的高强钛合金抗拉强度超过1500MPa，同时延伸率和断面收缩率分别能达到10％和30％。
摘要（英）：

The invention discloses a rolling method for 1500MPa-grade titanium alloy bars. The method includes the steps of 1, selecting Ti-6Al-4Mo-4Zr-2Sn-2Cr-1Fe-1Nb bar billets; 2, in the atmosphere, heating the bar billets selected in the step 1 through a heating furnace and carrying out heat preservation treatment on the bar billets; 3, placing the bar billets obtained after the treatment in the step 2 on an open-train mill and heating and rolling the bar billets to obtain finished bar billets; and 4, sequentially carrying out solution treatment and aging treatment on the finished bar billets rolled in the step 3 and finally carrying out straightening and grinding to obtain the finished titanium alloy bars. According to the rolling method for the 1500MPa-grade titanium alloy bars, the tensile strength of rolled high-strength titanium alloy is greater than 1500MPa, the ductility can reach 10%, and the percentage of area reduction can reach 30%.

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