文档介绍：第 42 卷第 8 期中南大学学报(自然科学版) Vo l .4 2
2011 年 8 月 Journal of Central South University (Science and Technology) Aug. 2011

真空烧结制备三维通孔不锈钢泡沫材料

王辉,周向阳,李昌林,李劼,宋泓宇

(中南大学冶金科学与工程学院,湖南长沙,410083)

摘要:采用真空烧结制备具有三维通孔网状结构的 316L 不锈钢泡沫材料,研究烧结温度和保温时间对不锈钢泡
沫材料的表观密度、开孔孔隙率、抗弯强度、抗氧化性等方面的影响。研究结果表明:随着烧结温度的升高,泡
沫材料的表观密度和线收缩率增大,抗氧化性能提高,开孔孔隙率减小;随着烧结温度的升高,泡沫材料抗弯强
度明显增大,但当烧结温度超过 1 260 ℃,由于液相的产生,使其抗弯强度降低;随着保温时间的延长,不锈钢
泡沫的表观密度、线收缩率和抗弯强度增大,开孔孔隙率降低;前驱体在 1 260 ℃温度下烧结 60 min,可制得孔
径为 1 mm 左右、具有良好三维通孔结构的不锈钢泡沫,该泡沫的开孔孔隙率为 %,抗弯强度达 MPa。
关键词:真空烧结;不锈钢泡沫;抗弯强度;抗高温氧化性
中图分类号: 文献标志码:A 文章编号:1672−7207(2011)08−2178−06

Vacuum sintering of stainless steel foam with
3-D open-work structure

WANG Hui, ZHOU Xiang-yang, LI Chang-lin, LI Jie, SONG Hong-yu

(School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China)

Abstract: The stainless steel foam with 3-D open-work structure were prepared by vacuum sintering. The effects
of sintering temperature and soaked time on the apparent density, open porosity, bending strength and oxidation resistance
performance of the stainless steel foam were investigated. The experimental results show that with the increase of the
sintering temperature, the apparent density, linear shrinkage rate and oxidation resistance performance of the sintered
product increase, but th