Abstract
Bu çalışmada, çinko-alüminyum esaslı ZA-12 alaşımının mikroyapı, sertlik
ve darbe dayanımına % ağırlıkça 0.1,
0.2 ve 0.4 oranında bor alaşım elementinin etkisi araştırılmıştır. Alaşımlar
kontrollu atmosferde, ön ısıtılmış sıkıştırma döküm kalıbına dökülerek
katılaştırılmıştır. Sonuçlar bor alaşım elementinin mikroyapıyı modifiye
ettiğini, dendrit yapısını küreselleştirdiği ve ötektik lameller arası mesafeyi
kısalttığını göstermektedir. Artan B ilavesi ile sertlik değerinde artış
görülmüştür. Sertlik sonuçlarına benzer şekilde darbe dayanımı da B ilavesi ile
artmıştır.
Keywords
References
- Fatile B.O., Adewuyi B.O. and Owoyemi H.T., Synthesis and characterization of ZA-27 alloy matrix composites reinforced with zinc oxide nanoparticles, Engineering Science and Technology, an International Journal, 20, 1147–1154, (2017).
- Şevik H., The effect of silver on wear behaviour of zinc–aluminium-based ZA-12 alloy produced by gravity casting, Materials Characterization, 89, 81–87, (2014).
- Shivakumar, N., Vasu, V. and Narasaiah N, Processing and dry sliding wear behavior of Al2O3 nanoparticles reinforced ZA-27 composites, Materials Today: Proceedings, 4, 4006–4012, (2017).
- Babic, M., Mitrovic, S. and Jeremic B., The influence of heat treatment on the sliding wear behavior of a ZA-27 alloy, Tribology International, 43, 16–21, (2010).
- Çay, F. and Kurnaz, S.C., Hot tensile and fatigue behaviour of zinc–aluminum alloys produced by gravity and squeeze casting, Materials and Design, 26, 479–485, (2005).
- Ataç, A.M. and Güral, A., Çinko-Alüminyum (ZA) alaşımlarının mekanik alaşımlama yöntemiyle üretilebilirliği üzerine bir çalışma, Politeknik Dergisi, 16, 4, 147-154, (2013).
- Türk, A., Kurnaz, S.C. and Şevik, H., Comparison of the wear properties of modified ZA-8 alloys and conventional bearing bronze, Materials and Design, 28, 1889–1897, (2007).
- Zhou, W.B., Liu, C.Y., Yu, P.F., Zhang, B., Ma, Z.Y., Luo, K., Ma, M.Z. and Liu, R.P., Effect of scandium on microstructure and mechanical properties of high zinc concentration aluminum alloys, Materials Characterization, 127, 371–378, (2017).
- Kurnaz S.C., Production of saffil fibre reinforced Zn-Al (ZA 12) based metal matrix composites using infiltration technique and study of their properties, Materials Science and Engineering A, 346, 108-115, (2003).
Influence of boron content on microstructure and impact behavior of Zinc–Zluminium based ZA-12 alloy
Abstract
In this study, the
effect of boron (0, 0.1, 0.2, 0.4 B wt%) on the microstructure, hardness and
impact properties of a zinc-aluminum alloy (ZA-12) were investigated. The
alloys were produced under a controlled atmosphere by a gravity casting
process. The results show that the addition of B element modified the structure,
dendrites shape change to spherical shape and decrease of the eutectic lamellar
spacing. The hardness value of ZA-12 increased with adding B. The same results were
obtained by impact test. The impact energy increased with increasing B addition.
Keywords
References
- Fatile B.O., Adewuyi B.O. and Owoyemi H.T., Synthesis and characterization of ZA-27 alloy matrix composites reinforced with zinc oxide nanoparticles, Engineering Science and Technology, an International Journal, 20, 1147–1154, (2017).
- Şevik H., The effect of silver on wear behaviour of zinc–aluminium-based ZA-12 alloy produced by gravity casting, Materials Characterization, 89, 81–87, (2014).
- Shivakumar, N., Vasu, V. and Narasaiah N, Processing and dry sliding wear behavior of Al2O3 nanoparticles reinforced ZA-27 composites, Materials Today: Proceedings, 4, 4006–4012, (2017).
- Babic, M., Mitrovic, S. and Jeremic B., The influence of heat treatment on the sliding wear behavior of a ZA-27 alloy, Tribology International, 43, 16–21, (2010).
- Çay, F. and Kurnaz, S.C., Hot tensile and fatigue behaviour of zinc–aluminum alloys produced by gravity and squeeze casting, Materials and Design, 26, 479–485, (2005).
- Ataç, A.M. and Güral, A., Çinko-Alüminyum (ZA) alaşımlarının mekanik alaşımlama yöntemiyle üretilebilirliği üzerine bir çalışma, Politeknik Dergisi, 16, 4, 147-154, (2013).
- Türk, A., Kurnaz, S.C. and Şevik, H., Comparison of the wear properties of modified ZA-8 alloys and conventional bearing bronze, Materials and Design, 28, 1889–1897, (2007).
- Zhou, W.B., Liu, C.Y., Yu, P.F., Zhang, B., Ma, Z.Y., Luo, K., Ma, M.Z. and Liu, R.P., Effect of scandium on microstructure and mechanical properties of high zinc concentration aluminum alloys, Materials Characterization, 127, 371–378, (2017).
- Kurnaz S.C., Production of saffil fibre reinforced Zn-Al (ZA 12) based metal matrix composites using infiltration technique and study of their properties, Materials Science and Engineering A, 346, 108-115, (2003).
Details
| Subjects | Engineering |
|---|---|
| Journal Section | Research Articles |
| Authors | |
| Publication Date | July 17, 2018 |
| Submission Date | July 24, 2017 |
| Published in Issue | Year 2018 Volume: 20 Issue: 1 |
