Publication detail

Effect of SiC particles on sinterability of Al-Zn-Mg-Cu P/M alloy

RUDIANTO, H. JANG, G. YANG, S. KIM, Y. DLOUHÝ, I.

Original Title

Effect of SiC particles on sinterability of Al-Zn-Mg-Cu P/M alloy

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

metal matrix composites, powder metallurgy, sintering, heat treatment

Authors

RUDIANTO, H.; JANG, G.; YANG, S.; KIM, Y.; DLOUHÝ, I.

RIV year

2015

Released

10. 5. 2015

Publisher

Institute of Metallurgy and Materials Science of Polish Academy of Sciences, Commitee on Metallurgy of Polish Academy of Sciences

Location

Polsko

ISBN

2300-1909

Periodical

Archives of Metallurgy and Materials

Year of study

60

Number

2

State

Republic of Poland

Pages from

1383

Pages to

1385

Pages count

3

URL

http://journals.pan.pl/dlibra/publication/103743/edition/89749/content

Full text in the Digital Library

http://hdl.handle.net/11012/201339

BibTex

@article{BUT115412,
  author="Haris {Rudianto} and Gwang Joo {Jang} and Sang Sun {Yang} and Yong Jin {Kim} and Ivo {Dlouhý}",
  title="Effect of SiC particles on sinterability of Al-Zn-Mg-Cu P/M alloy",
  journal="Archives of Metallurgy and Materials",
  year="2015",
  volume="60",
  number="2",
  pages="1383--1385",
  doi="10.1515/amm-2015-0136",
  issn="2300-1909",
  url="http://journals.pan.pl/dlibra/publication/103743/edition/89749/content"
}