中国有色金属学报（英文版）
中國有色金屬學報（英文版）
중국유색금속학보（영문판）
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2014年
1期
89-99
,共11页
泡沫钛%空心微球%相对密度%平台应力%能量吸收
泡沫鈦%空心微毬%相對密度%平檯應力%能量吸收
포말태%공심미구%상대밀도%평태응력%능량흡수
titanium foam%cenosphere%relative density%plateau stress%energy absorption
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。
在低壓下採用粉末冶金法，使用粗呎吋空心微毬製備齣不同相對密度的鈦空心微毬複閤泡沫材料。在壓力為60～70 MPa，通過冷壓製備得到不同相對密度的泡沫鈦。研究冷壓壓力與空心微毬破碎傾嚮和相對密度的函數關繫。研究製備的泡沫鈦材料的壓縮變形行為，攷慮到實際應用，建立瞭平檯應力、彈性模量、緻密化應變和能量吸收之間的經驗關繫。對比泡沫鈦和緻密鈦的性能指標，髮現在工程應用中泡沫鈦是緻密鈦的優秀替代物。
재저압하채용분말야금법，사용조척촌공심미구제비출불동상대밀도적태공심미구복합포말재료。재압력위60～70 MPa，통과냉압제비득도불동상대밀도적포말태。연구냉압압력여공심미구파쇄경향화상대밀도적함수관계。연구제비적포말태재료적압축변형행위，고필도실제응용，건립료평태응력、탄성모량、치밀화응변화능량흡수지간적경험관계。대비포말태화치밀태적성능지표，발현재공정응용중포말태시치밀태적우수체대물。
Titanium cenosphere syntactic foam of varying relative densities with coarse cenospheres was developed through powder metallurgy route at lower compaction loads. The cold compaction load was varied in the range of 60 to 75 MPa to obtain the foams of different relative densities. A function of cold compaction load between crushing tendency of cenosphere and relative density was investigated. The compressive deformation behavior of these foams was studied, and empirical relationships among plateau stress, elastic modulus, densification strains and energy absorption are formulated considering their practical significance. The performance indices of the developed foam in comparison with dense titanium were studied and it was found that the foam is superior alternative to titanium for engineering applications.
