The use of β titanium alloys in the aerospace industry
The use of β titanium alloys in the aerospace industry
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DOI：
10.1361/105994905x75448
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发表时间：
2005-12-01
影响因子：
2.3
通讯作者：
Briggs, RD
中科院分区：
文献类型：
--
作者：
Boyer, RR;Briggs, RD
自20世纪50年代以来，β钛合金（Ti-13 V-11 Cr-3 Mo或B120 VCA）就已问世，但除了SR-71黑鸟之外，这些合金的重要应用一直进展缓慢。直到20世纪80年代中期，在B-1 B轰炸机上才出现了0合金的下一次重要应用。这架飞机使用Ti-15 V-3Cr-3Al-3Sn板材，因为它具有带材轧制能力，改善了成形性，并且比Ti-6Al-4V更高的强度。下一个主要用途是商用飞机波音777，它广泛使用Ti-10 V-2Fe-3Al高强度锻件。还使用了Ti-15 V-3Cr-3Al-3Sn环境控制系统导管、铸件和弹簧，沿着Ti-3Al-8V-6Cr-4 Mo-4 Zr（P-C）弹簧。Beta-21 S也被引入高温使用。波音公司最近的工作集中在Ti-5Al-5 Mo-5V-3Cr的开发上，这是一种高强度合金，可以在比Ti-10 V-2Fe-3Al更高的强度下使用，并且更加坚固;它具有更宽或更友好的加工窗口。这一点，沿着额外的研究，在波音公司，并从航空航天工业内一般将详细讨论，总结应用和该合金系统的航空航天应用的选择的理由。
Beta titanium alloys have been available since the 1950s (Ti-13V-11Cr-3Mo or B120VCA), but significant applications of these alloys, beyond the SR-71 Blackbird, have been slow in coming. The next significant usage of a 0 alloy did not occur until the mid-1980s on the B-1B bomber. This aircraft used Ti-15V-3Cr-3Al-3Sn sheet due to its capability for strip rolling, improved formability, and higher strength than Ti-6Al-4V. The next major usage was on a commercial aircraft, the Boeing 777, which made extensive use of Ti-10V-2Fe-3Al high-strength forgings. Ti-15V-3Cr-3Al-3Sn environmental control system ducting, castings, and springs were also used, along with Ti-3Al-8V-6Cr-4Mo-4Zr (P-C) springs. Beta-21S was also introduced for high-temperature usage. More recent work at Boeing has focused on the development of Ti-5Al-5Mo-5V-3Cr, a high-strength alloy that can be used at higher strength than Ti-10V-2Fe-3Al and is much more robust; it has a much wider, or friendlier, processing window. This, along with additional studies at Boeing, and from within the aerospace industry in general will be discussed in detail, summarizing applications and the rationale for the selection of this alloy system for aerospace applications.