Titanium and Titanium Alloys
Titanium and Titanium Alloys
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DOI：
10.1007/978-3-030-24440-8_4
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发表时间：
2019-10
期刊：
影响因子：
--
通讯作者：
S. Gialanella;Alessio Malandruccolo
中科院分区：
文献类型：
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作者：
S. Gialanella;Alessio Malandruccolo
钛和钛合金是飞机几个部件的基本组成部分，由于其独特的性能组合：高比强度，低热膨胀系数，中等密度，长疲劳寿命，蠕变强度，断裂韧性，以及由TiO2表面钝化层的自发形成引起的优异的耐腐蚀性。钛合金作为基础航空航天材料的巨大利益的一个间接证据可以从其广泛的应用中推断出来，从结构部件到发动机部件。这种兴趣在未来一定会继续下去，持续进行的研究集中在新合金的开发上，如钛铝化物，表现出更好的性能，符合甚至从新的优先事项中出现的设计要求，如节省燃料和减少空气污染。本章专门介绍钛及其合金，特别关注冶金问题和生产工艺。此外，与第二章中所述的其他轻合金一样， 3 介绍了其在航空航天领域的主要应用。
Titanium and titanium alloys are fundamental constituents of several parts of aircrafts, owing to their unique combination of properties: high specific strength, low coefficient of thermal expansion, moderate density, long fatigue life, creep strength, fracture toughness, and excellent corrosion resistance induced by the spontaneous formation of a TiO2surface passivating layer. An indirect proof of the great interest for titanium alloys as fundamental aerospace materials can be inferred from their wide range of applications, from structural components to engine parts. This interest is bound to continue in the future, sustained by the ongoing research focused on the development of new alloys, like Ti-aluminides, exhibiting improved properties, compliant with the design requirements emerging even from novel priorities, like fuel saving and reduction in air pollution. This chapter is entirely dedicated to titanium and its alloys, with particular focus on metallurgical issues and production processes. Furthermore, like for the otherlight alloysseen in Chap. 3 , the main applications in the aerospace field are presented.