Effect Of SiC Particles On Sinterability Of Al-Zn-Mg-Cu P/M Alloy

• Autorzy: Rudianto H. , Jang G. J. , Yang S. S. , Kim Y. J. , Dlouhy I.

Identyfikatory

DOI

10.1515/amm-2015-0136

Warianty tytułu

PL

Wpływ cząstek SiC na spiekalność proszku stopowego Al-Zn-Mg-Cu

• Języki publikacji: EN

Abstrakty

EN

Premix Al-5.5Zn-2.5Mg-0.5Cu alloy powder was analyzed as matrix in this research. Gas atomized powder Al-9Si with 20% volume fraction of SiC particles was used as reinforcement and added into the alloy with varied concentration. Mix powders were compacted by dual action press with compaction pressure of 700 MPa. High volume fraction of SiC particles gave lower green density due to resistance of SiC particles to plastic deformation during compaction process and resulted voids between particles and this might reduce sinterability of this mix powder. Sintering was carried out under ultra high purity nitrogen gas from 565°-580°C for 1 hour. High content of premix Al-5.5Zn-2.5Mg-0.5Cu alloy powder gave better sintering density and reached up to 98% relative. Void between particles, oxide layer on aluminum powder and lower wettability between matrix and reinforcement particles lead to uncompleted liquid phase sintering, and resulted on lower sintering density and mechanical properties on powder with high content of SiC particles. Mix powder with wt90% of Alumix 431D and wt10% of Al-9Si-vf20SiC powder gave higher tensile strength compare to another mix powder for 270 MPa. From chemical compositions, sintering precipitates might form after sintering such as MgZn₂, CuAl₂ and Mg₂Si. X-ray diffraction, DSC-TGA, and SEM were used to characterize these materials.

Słowa kluczowe

EN

metal matrix composites; powder metallurgy; sintering; heat treatment

PL

kompozyty metalowe; metalurgia proszków; spiekanie; obróbka cieplna

• 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: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1383--1385
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Rudianto H.

• Institute of Materials Science and Engineering, Netme Center, Brno University of Technology, Brno, Czech Republic

autor

Jang G. J.

• Powder Technology Research Group, Korea Institute of Materials Science, Changwon, Republic of Korea

autor

Yang S. S.

• Powder Technology Research Group, Korea Institute of Materials Science, Changwon, Republic of Korea

autor

Kim Y. J.

• Powder Technology Research Group, Korea Institute of Materials Science, Changwon, Republic of Korea

autor

Dlouhy I.

• Institute of Materials Science and Engineering, Netme Center, Brno University of Technology, Brno, Czech Republic

Bibliografia

• [1] V. Laurent, D. Chatain, N. Eustathopoulus, J. Mater. Scie. 22, 244-250 (1987).
• [2] H. Rudianto, Y. Sang Sun, K. Yong Jin, N. Ki Woo, Inter. J. Modern. Physics: Conference Series. 6, 628-633 (2012).
• [3] T. Pieczonka, Th. Schubert, S. Baunack, B. Kieback, Mater. Scie. Eng. A 478, 1-2, 251-256 (2008).
• [4] G. B. Schaffer, B. J. Hall, S. J. Bonner, S. H. Huo, T.B. Sercombe, Acta Materialia 54, 1, 131-138 (2006).
• [5] H. Rudianto, Y. Sang Sun, N. Ki Woo, K. Yong Jin, Rev. Adv. Mater. Scie. 28, 2, 145-149 (2011).
• [6] N. Showaiter, M. Youseffi, Materials and Design. 29, 752-762 (2008).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.