论文部分内容阅读
在低压下采用粉末冶金法,使用粗尺寸空心微球制备出不同相对密度的钛空心微球复合泡沫材料。在压力为60~70 MPa,通过冷压制备得到不同相对密度的泡沫钛。研究冷压压力与空心微球破碎倾向和相对密度的函数关系。研究制备的泡沫钛材料的压缩变形行为,考虑到实际应用,建立了平台应力、弹性模量、致密化应变和能量吸收之间的经验关系。对比泡沫钛和致密钛的性能指标,发现在工程应用中泡沫钛是致密钛的优秀替代物。
Under the low pressure using the powder metallurgy method, the use of rough-size hollow microspheres prepared with different relative density titanium hollow microspheres composite foam. Under the pressure of 60 ~ 70 MPa, prepared by cold pressing of different relative density of titanium foam. The relationship between cold pressure and the breaking tendency and relative density of hollow microspheres was investigated. The compressive deformation behavior of the foamed titanium material was studied. Considering the practical application, the empirical relationship between the plate stress, elastic modulus, densification strain and energy absorption was established. Contrast the properties of titanium foam and titanium, and found that titanium foam is an excellent substitute for titanium in engineering applications.