Effect of Strut Thickness on Room and High Temperature Compressive Properties of Block-Type Ni-Cr-Al Powder Porous Metals

• Autorzy: Kang B.-H. , Park M.-H. , Lee K.-A.

Identyfikatory

DOI

10.1515/amm-2017-0203

• Języki publikacji: EN

Abstrakty

EN

This study investigated the effect of strut thickness on the room and high temperature compressive properties of block-type Ni-Cr-Al powder porous metals with ~3000 μm pore size manufactured using a new powder process. Two block-type Ni-Cr-Al porous metals with different strut thicknesses were manufactured. The strut thicknesses of two block foams were 340 μm (A) and 383 μm (B), respectively. Room temperature, 500°C, 650°C and 800°C compressive tests were performed. The compressive results identified typical elastic, plateau and densification regions of foam material in all temperature conditions. Regardless of the strut thickness, compressive strength (maximum peak stress) decreased as deformation temperature increased. In all deformation temperature ranges, the compressive strength measured higher in the porous metal with greater strut thickness (B). The high temperature deformation behavior of powder porous metal was confirmed to be affected by the structural factor and microstructural factor of the porous metal. With the findings described above, this study also discussed the high temperature deformation mechanism of the Ni-Cr-Al metal foam based on fracture surfaces after the high temperature compressions.

Słowa kluczowe

EN

Ni-Cr-Al; powder porous metal; strut thickness; high temperature; compressive behavior

• 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: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1329--1334
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Kang B.-H.

• Dongyang A.K Korea Co., Wonhapgang 1-GIL, Sejong-Si, 30067, Korea

autor

Park M.-H.

• Alantum Corp., Sengnam-Si, Korea (Republic of)

autor

Lee K.-A.

• Inha University, 100 Inha-Ro, Incheon, 22212, Korea

Bibliografia

• [1] L.J. Gibson, M.F. Ashby, Cellular solids: Structure and Properties, 2nd Ed. (Cambridge University Press, Cambridge, U.K., 1997).
• [2] M.F. Ashby, A.G. Evans, N.A. Fleck, L.J. Gibson, J.W. Hutchinson, H.N.G. Wadley, Metal Foams: A design Guide (Butterworth Heinemann, Oxford, U.K., 2000).
• [3] Wadley HNG, Cellular metals and metal foaming technology, (Verlag MIT, Germany, 2001).
• [4] J. Bin, W. Zejun, Z. Naiqin, J. Scr. Mater. 56, 169 (2007).
• [5] J. Zhou, P. Shrotriya, W.O. Soboyejo, J. Mech. Mater. 36, 781 (2004).
• [6] S.H. Choi, J.Y. Yun, H.M. Lee, Y.M. Kong, B.K. Kim, K.A. Lee, J. Korean Powder Metall. Inst. 18, 122 (2011).
• [7] J.S. Oh, M.C. Shim, M.H. Park, K.A. Lee, Met. Mater. Int. 20, 915 (2014).
• [8] S.Y. Kim, S.H. Choi, J.Y. Yun, B.K. Kim, Y.M. Kong and K.A. Lee, Met. Mater. Int. 17, 983 (2011).
• [9] C.O. Kim, J.S. Bae, K.A. Lee, J. Korean Powder Metall. Inst. 22, 93 (2015).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)