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发明公开
CN110747372A 100％返回炉料制备低成本高强度钛合金板材及其制备方法 有权

100％返回炉料制备低成本高强度钛合金板材及其制备方法
摘要：
本发明提供一种100％返回炉料制备低成本高强度钛合金板材，其组份按质量百分比计为：Al：3.0～6.0wt.％；Mo：3.0～5.5wt.％；V：3.0～5.5wt.％；Cr：0.1～2.0wt.％；Fe：0.1～2.0wt.％；O：≤0.20wt.％；N：≤0.10wt.％；C：≤0.10wt.％；余量为Ti和不可避免的杂质；所述100％返回炉料制备低成本高强度钛合金板材的上述所有组份的原料为纯钛残料和钛合金残料；其中，所述纯钛残料为TA1、TA2、TA3、TA4中的一种或多种，所述钛合金残料为TA11、TA18、TB2、TB6、TC4、TC6、TC18的一种或几种。本发明还提供一种100％返回炉料制备低成本高强度钛合金板材的制备方法。与相关技术相比，本发明的100％返回炉料制备低成本高强度钛合金板材及其制备方法制备的所述100％返回炉料制备低成本高强度钛合金板材拉伸强度大于1150MPa。
摘要（英）：

The invention provides a low-cost and high-strength titanium alloy plate prepared by 100% of returned burdens. The low-cost and high-strength titanium alloy plate comprises the following components inpercentage by mass: 3.0-6.0% of Al, 3.0-5.5% of Mo, 3.0-5.5% of V, 0.1-2.0% of Cr, 0.1-2.0% of Fe, O not more than 0.20%, N not more than 0.10%, C not more than 0.10%, and the balance of Ti and inevitable impurities; raw materials of all the components of the low-cost and high-strength titanium alloy plate prepared by 100% of the returned burdens are pure titanium residues and titanium alloy residues; the pure titanium residues are one or more of TA1, TA2, TA3 and TA4; and the titanium alloy residues are one or several of TA11, TA18, TB2, TB6, TC4, TC6 and TC18. The invention further providesa preparation method of the low-cost and high-strength titanium alloy plate prepared by 100% of the returned burdens. Compared with the prior art, the low-cost and high-strength titanium alloy plateprepared by 100% of the returned burdens by the preparation method reaches the stretch strength of higher than 1150 MPa.

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