泡沫镁制备及抗压缩性能（英文）  

Preparation and Compressive Properties of Magnesium Foam

作　　者：廖益龙[1] 邱贵宝[1] 杨杨[1] 吕学伟[1] 白晨光[1] 

机构地区：[1]重庆大学,重庆400044

出　　处：《稀有金属材料与工程》2016年第10期2498-2502,共5页Rare Metal Materials and Engineering

基　　金：National Natural Science Foundation of China(51174243,51090383)

摘　　要：作为一种新型结构和功能材料,泡沫金属具有比实体金属更优异的性能。本研究利用粉末冶金造孔剂法成功制备了孔隙率为38.9%～57.5%泡沫镁。随着孔隙率从38.9%增加到57.5%时,其弹性模量由8.5 GPa下降到3.3 GPa,初始屈服应力从24.90 MPa下降到9.40 MPa。泡沫镁具有较低的初始屈服应力和较长的应力平台,因此,它可以作为优异的缓冲吸能材料。Porous materials as a new type structure and functional materials, duo to specially structure compared with the dense materials, which given the excellent properties of materials. The powder metallurgy with space holder technique was used to prepare magnesium foam. The porosity increases from 38.90% up to 57.50%, resulting in that the elastic modulus decreases from 8.50GPa to 3.30GPa, and resulting in that the yield stress decreases from 24.90MPa to 9.40 MPa. Magnesium foam has lower yield stress and longer stress platform, so it can be used as excellent cushioning energy absorbing materials.

关 键 词：泡沫镁 屈服应力 弹性模量 吸能性 

分 类 号：TG146.22[一般工业技术—材料科学与工程]