High Temperature Random Stack Creep Property of Ni-Cr-Al based Powder Porous Metal Manufactured with Powder Sintering Process

• Autorzy: Kang Tae-Hoon , Kim Kyu-Sik , Park Man-Ho , Lee Kee-Ahn

Identyfikatory

DOI

10.24425/amm.2019.127569

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

powder porous metal; high-temperature; compression test; creep property

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 2
• Strony: 513--518
• Opis fizyczny: Bibliogr. 16 poz., fot., rys., wzory

Twórcy

autor

Kang Tae-Hoon

• Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea

autor

Kim Kyu-Sik

• Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea

autor

Park Man-Ho

• Asflow Co. Ltd., Hwaseong 18522, Republic of Korea

autor

Lee Kee-Ahn

• Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea

Bibliografia

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Uwagi

EN

1. This study was supported by Program for the Development of Strategic Core Materials, Republic of Korea government ministry of Trade, Industry and Energy.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).