期刊
MATERIALS TRANSACTIONS
卷 49, 期 12, 页码 2919-2921出版社
JAPAN INST METALS
DOI: 10.2320/matertrans.MEP2008322
关键词
porous metals; energy absorption; sintering; mechanical properties; relative density
资金
- State Key Development Program for Basic Research of China [2006CB601201B]
Porous sintered fiber metals with different relative densities were successfully prepared by using vacuum sintering process. Compressive property and energy absorption capacity of porous sintered fiber metals were investigated under quasi-static conditions. The results indicate that compressive stress strain curves of porous sintered fiber metals exhibit three distinct deformation regions: elastic rep-ion, stress plateau region and densification region. The compressive property of porous sintered fiber metals can be interpreted by the Gibson-Ashby theory. It is found that compressive property, energy absorption capacity and energy absorption efficiency of porous sintered fiber metals present significant relative density sensitivity. The energy absorption capacity of the samples rises from 7.17 to 25.75 Mj.m (3) when relative density increases from 0.177 to 0.355. [doi:10.2320/matertrans.MEP2008322]
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