Characterization Investigations of W-Ni Matrix Composites Reinforced with TiB_2 and La_2O_3

• Authors: H. Gökçe , Ö. Balcı , D. Ağaoğulları , Ö. Demirkan , A. Genç , M. Öveçoğlu , İ. Duman
• Languages of publication: EN

Abstracts

EN

W-1 wt% Ni (W1Ni) matrix composites reinforced with TiB_2 and La_2O_3 particles were fabricated via mechanical alloying and activated sintering methods. Powder blends with compositions of W1Ni-2 wt% TiB_2-x wt% La_2O_3 (x = 0.5, 1) were mechanically alloyed for 6 and 12 h. The results showed that increase in mechanical alloying duration to 12 h causes the decline of grain sizes of the W-Ni matrix to nanoscales. TiB_2/La_2O_3 particles have a significant effect on the density/microhardness values and wear amounts of the sintered samples.

Keywords

EN

81.20.Ev

Discipline

• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 123
• Issue: 2
• Pages: 309-312

Dates

published

2013-02

Contributors

author

H. Gökçe

• Particulate Materials Laboratories, Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469, İstanbul, Turkey

author

Ö. Balcı

• Particulate Materials Laboratories, Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469, İstanbul, Turkey

author

D. Ağaoğulları

• Particulate Materials Laboratories, Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469, İstanbul, Turkey

author

Ö. Demirkan

• Particulate Materials Laboratories, Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469, İstanbul, Turkey

author

A. Genç

• Particulate Materials Laboratories, Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469, İstanbul, Turkey

author

M. Öveçoğlu

• Particulate Materials Laboratories, Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469, İstanbul, Turkey

author

İ. Duman

• Particulate Materials Laboratories, Department of Metallurgical and Materials Engineering, İstanbul Technical University, 34469, İstanbul, Turkey

References

• [1] E. Lassner, W.D. Schubert, Tungsten: Properties, Chemistry, Technology of the Element, Alloys and Chemical Compounds, Kluwer Academic, New York 1999
• [2] H.W. Hayden, J.H. Brophy, J. Electrochem. Soc. 110, 805 (1963)
• [3] N.M. Hwang, Y.J. Park, D.Y. Kim, D.Y. Yoo, Scr. Mater. 42, 421 (2000)
• [4] S.W. Kim, S.I. Lee, Y.D. Kim, I.H. Moon, Int. J. Refract. Met. H 21, 183 (2003)
• [5] G.M. Song, Y.J. Wang, Y. Zhou, Mater. Sci. Eng. A 334, 223 (2002)
• [6] Y. Chen, Y.C. Wu, F.W. Yu, J.L. Chen, Int. J. Refract. Met. H 26, 525 (2008)
• [7] K.E. Rea, V. Viswanathan, A. Kruize, J.Th.M. de Hosson, S. O'Dell, T. McKechnie, S. Rajagopalan, R. Vaidyanathan, S. Seal, Mater. Sci. Eng. A 477, 350 (2008)
• [8] S. Coşkun, M.L. Öveçoğlu, B. Özkal, J. Alloys Comp. 492, 576 (2010)
• [9] A. Genç, S. Coşkun, M.L. Öveçoğlu, Mater. Char. 61, 740 (2010)

Identifiers

DOI

10.12693/APhysPolA.123.309