In this study, porous stainless steel (STS316L) sintered body was fabricated by powder metallurgy method and its properties such as porosity, compressive yield strength, hardness, and permeability were evaluated. 67.5Fe-17Cr-13Ni-2.5Mo (wt%) powder was produced by a water atomization. The atomized powder was classified into size with under 45 μm and over 180 μm, and then they were compacted with various pressures and sintered at 1210oC for 1 h in a vacuum atmosphere. The porosities of sintered bodies could be obtained in range of 20~53% by controlling the compaction pressure. Compressive yield strength and hardness were achieved up to 268 MPa and 94 Shore D, respectively. Air permeability was obtained up to 79 l/min·cm2. As a result, mechanical properties and air permeability of the optimized porous body having a porosity of 25~40% were very superior to that of Al alloy.

• 김세훈(자동차부품연구원 소재융합디자인연구센터) | Se Hoon Kim
• 김상민(자동차부품연구원 융합소재공정연구센터) | Sang Min Kim
• 노상호(자동차부품연구원 융합소재공정연구센터) | Sang Ho Noh Corresponding Author
• 김진평(자동차부품연구원 소재융합디자인연구센터) | Jin Pyeong Kim
• 신재혁(자동차부품연구원 소재융합디자인연구센터) | Jae Hyuck Shin
• 성시영(자동차부품연구원 소재융합디자인연구센터) | Si-Young Sung
• 진광진(㈜동원테크 기술연구소) | Jin Kwang Jin
• 김태안(㈜동원테크 기술연구소) | Taean Kim