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钛合金是航空领域应用十分广泛的金属材料之一。通过进行断裂韧度测试试验和腐蚀环境下的裂纹扩展速率试验,研究了TC27钛合金疲劳断裂特性,将TC27钛合金的疲劳断裂特性与Ti55531钛合金进行了对比。结果表明:TC27与Ti55531的疲劳性能基本持平。
Titanium is one of the most widely used metallic materials in the aviation field. The fatigue fracture characteristics of TC27 titanium alloy were studied by conducting fracture toughness test and crack growth rate test under corrosive environment. The fatigue fracture characteristics of TC27 titanium alloy were compared with Ti55531 titanium alloy. The results show that the fatigue properties of TC27 and Ti55531 are basically the same.