International Journal of Advances in Engineering Research http://www.ijaer.com (IJAER) 2016, Vol. No. 12, Issue No. III, September e-ISSN: 2231-5152, p-ISSN: 2454-1796 13 IRA PUBLICATIONS www.irapub.com EVALUATON OF MECHANICAL PROPERTIES ON AS – CAST AND HEAT TREATED AL7075 ALLOY REINFORCED WITH ALBITE PARTICULATE COMPOSITES Batluri Tilak Chandra*, Sanjeevamurthy**, H. S. Shiva Shankar*** *Research scholar, Department of Mechanical Engineering, Sri Siddhartha Institute of Technology, Tumkur-572105, Karnataka, India **Professor Department of Mechanical Engineering, Sri Siddhartha Institute of Technology, Tumkur-572105, Karnataka, India ***Professor Department of Mechanical Engineering, Siddaganga Institute of Technology, Tumkur-572103, Karnataka, India ABSTRACT Aluminium 7075 alloy reinforced with albite particulate composites having 2 wt% to 10 wt% in steps of 2 wt% were developed by stir casting method. The casted composite specimens were heat treated at 470° C solutioninzing temperature with artificial ageing at 120° C. The composite specimens were machined and tested as per ASTM standards. Microstructural analysis clearly reveals that uniform dispersion of albite particulates in the matrix alloy. From mechanical properties test it was observed that increase in hardness, tensile strength and compression strength when compared with As – Cast composites. Keywords: Al7075 matrix alloy composite, Albite Particulates, Solutioninzing temperature, Artificial Ageing, Hardness Test. INTRODUCTION Aluminium alloy 7075 has wide demand for the development of high strength and light weight parts and components for industrial application. Al7075 alloy is a good wear resistant with increased mechanical properties [1, 2]. The Aluminium – Zinc alloy develops precipitates of MgZn 2 results in embrittlement [2, 3]. The T6 heat treatment was performed with 470° solutioninzing temperature and 120° C artificial ageing [4]. The incorporation of hard ceramic particles into aluminium alloy improves its mechanical properties [5]. From various research work studies it was found that Kim et al
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International Journal of Advances in Engineering Research http://www.ijaer.com
(IJAER) 2016, Vol. No. 12, Issue No. III, September e-ISSN: 2231-5152, p-ISSN: 2454-1796
13
IRA PUBLICATIONS www.irapub.com
EVALUATON OF MECHANICAL PROPERTIES ON AS –
CAST AND HEAT TREATED AL7075 ALLOY
REINFORCED WITH ALBITE PARTICULATE
COMPOSITES
Batluri Tilak Chandra*, Sanjeevamurthy**, H. S. Shiva Shankar***
*Research scholar,
Department of Mechanical Engineering,
Sri Siddhartha Institute of Technology,
Tumkur-572105, Karnataka, India
**Professor
Department of Mechanical Engineering,
Sri Siddhartha Institute of Technology,
Tumkur-572105, Karnataka, India
***Professor
Department of Mechanical Engineering,
Siddaganga Institute of Technology,
Tumkur-572103, Karnataka, India
ABSTRACT
Aluminium 7075 alloy reinforced with albite particulate composites having 2 wt% to 10 wt% in steps of 2 wt%
were developed by stir casting method. The casted composite specimens were heat treated at 470° C
solutioninzing temperature with artificial ageing at 120° C. The composite specimens were machined and
tested as per ASTM standards. Microstructural analysis clearly reveals that uniform dispersion of albite
particulates in the matrix alloy. From mechanical properties test it was observed that increase in hardness,
tensile strength and compression strength when compared with As – Cast composites.