TY - JOUR N2 - Recently, attempts have been made to use porous metal as catalysts in a reactor for the hydrogen manufacturing process using steam methane reforming (SMR). This study manufactured Ni-Cr-Al based powder porous metal, stacked cubic form porous blocks, and investigated high temperature random stack creep property. To establish an environment similar to the actual situation, a random stack jig with a 1-inch diameter and height of 75 mm was used. The porous metal used for this study had an average pore size of ~1161 μm by rolling direction. The relative density of the powder porous metal was measured as 6.72%. A compression test performed at 1073K identified that the powder porous metal had high temperature (800°C) compressive strength of 0.76 MPa. A 800°C random stack creep test at 0.38 MPa measured a steady-state creep rate of 8.58×10–10 s–1, confirming outstanding high temperature creep properties. Compared to a single cubic powder porous metal with an identical stress ratio, this is a 1,000-times lower (better) steady-state creep rate. Based on the findings above, the reason of difference in creep properties between a single creep test and random stack creep test was discussed. L1 - http://www.czasopisma.pan.pl/Content/111309/PDF/AMM-2019-2-12-KA%20Lee.pdf L2 - http://www.czasopisma.pan.pl/Content/111309 PY - 2019 IS - No 2 EP - 518 DO - 10.24425/amm.2019.127569 KW - powder porous metal KW - High-Temperature KW - compression test KW - creep property A1 - Kang, Tae-Hoon A1 - Kim, Kyu-Sik A1 - Park, Man-Ho A1 - Lee, Kee-Ahn PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 64 DA - 2019.06.27 T1 - High Temperature Random Stack Creep Property of NI-CR-AL based Powder Porous Metal Manufactured with Powder Sintering Process SP - 513 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/111309 T2 - Archives of Metallurgy and Materials ER -