Manufacturing And High Temperature Oxidation Properties Of Electro-Sprayed Fe-24.5% Cr-5%Al Powder Porous Metal

Archives of Metallurgy and Materials

Byoung-Kee Kim¹  Jae-Sung Oh²  Kee-Ahn Lee²  Young-Min Kong³ 

[1] ENGINEERING (UNIVERSITY OF ULSAN, ULSAN 680-749, KOREA);SCHOOL OF ADVANCED MATERIALS ENGINEERING (ANDONG NATIONAL UNIVERSITY, ANDONG 760-749, KOREA);SCHOOL OF MATERIALS SCIENCE &

关键词: Keywords: Powder porous metal;    Electro-spray process;    Electric wire explosion;    Fe-24%Cr-5%Al;    High temperature oxidation;   

DOI  :  10.1515/amm-2015-0091

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Fe-Cr-Al based Powder porous metals were manufactured using a new electro-spray process, and the microstructures and high-temperature oxidation properties were examined. The porous materials were obtained at different sintering temperatures (1350°C, 1400°C, 1450°C, and 1500°)C and with different pore sizes (500 μm, 450 μm, and 200 μm). High-temperature oxidation experiments (TGA, Thermal Gravimetry Analysis) were conducted for 24 hours at 1000°C in a 79% N2+ 21% O2, 100 mL/min. atmosphere. The Fe-Cr-Al powder porous metals manufactured through the electro-spray process showed more-excellent oxidation resistance as sintering temperature and pore size increased. In addition, the fact that the densities and surface areas of the abovementioned powder porous metals had the largest effects on the metal’s oxidation properties could be identified.

【 授权许可】

Unknown