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一、概述钛是一种具有优异物理机械性能和耐化学介质腐蚀的金属。与其它金属相比,它有许多可贵的差异,这些差异构成了在国民经济各部门中的特殊用途。钛的熔点高;比重小,仅为钢的57%;强度高,比强度超过高强度钢和铝合金;具有良好的热强稳定性、低温韧性、高耐蚀性和优良的工艺性能。这种少有的综合性能使钛成为现代技术最有前途的结构材料之一。此外,钛在地壳中的蕴藏量极为丰富,其含量占地壳重量的0.61%,在所有元素中占第
First, an overview of titanium is a kind of metal with excellent physical and mechanical properties and resistance to chemical corrosion. Compared with other metals, it has many valuable differences that make up the special uses in all branches of the national economy. High melting point of titanium; small proportion, only 57% of steel; high strength, higher than the strength of high strength steel and aluminum alloy; has good thermal stability, low temperature toughness, high corrosion resistance and excellent process performance. This rare combination of properties makes titanium one of the most promising structural materials for modern technology. In addition, the amount of titanium in the crust is extremely rich, its content accounts for 0.61% by weight of the earth’s crust, in all elements