Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-03T00:39:20.514Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Solute Addition in the Microstructure and Hardness of the Al-Si-Cu Alloys

Published online by Cambridge University Press:  01 December 2016

H. M. Medrano-Prieto ,
C.G. Garay-Reyes ,
C.D. Gómez-Esparza  and
R. Martínez-Sánchez
H. M. Medrano-Prieto
Affiliation:
Dirección. Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, C.P.31136, Chihuahua, Chih., México
C.G. Garay-Reyes
Affiliation:
Dirección. Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, C.P.31136, Chihuahua, Chih., México
C.D. Gómez-Esparza
Affiliation:
Dirección. Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, C.P.31136, Chihuahua, Chih., México
R. Martínez-Sánchez
Affiliation:
Dirección. Centro de Investigación en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnología, Miguel de Cervantes No. 120, C.P.31136, Chihuahua, Chih., México
Get access

Abstract

Commercial aluminum alloys corresponding to Al-Cu-Si family are commonly used in casting and molding process because their high castability. The main characteristics of these alloys are the excellent weight/strength relation in conjunction with wear and corrosion resistance. Additionally, the mechanical properties of these alloys could be enhanced by heat treatment.

In Al A319 alloys, Cu and Mg are the main responsible to increase the mechanical properties after T6 heat treatment due to the precipitation of Al2Cu and Mg2Si and Al2CuMg phase [1]. Combined effects of Ni and Cu improve strength and hardness at relatively elevated temperature [2], Due to the low solubility of Ni in Al (0.04%), it has been reported the formation of FeAl9FeNi-type intermetallic, which is not totally dissolved with the typical solution treatments used in aluminum alloys [3]. Hayajneh et al., found that increasing amounts of intermetallic compounds Al3Ni, Al3(CuNi)2 and Al7Cu4Ni in Al-Cu alloy, the hardness increase [4].

The effect of Ni addition and solution treatment time on the microstructure and hardness of the Al A319 alloy are studied by Vickers microhardness (VHN), Rockwell B hardness (HRB), X Ray Diffraction (XRD), Optical Microscopy (OM), Scanning Electron Microscopy (SEM).

Keywords

AlAlloyHardness
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1815: Symposium 6J – NACE: Corrosion And Metallurgy , 2016 , imrc2015.20
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Tash, M. a,b, Samuel, F.H. a,*, Mucciardi, F. c, Doty, H.W. d. 2007. Effect of metallurgical parameters on the hardness and microstructural characterization of ascast and heat-treated 356 and 319 aluminum alloys. Materials Science and Engineering. 443. 185–201.CrossRefGoogle Scholar
Miller, W.S., Zhuang, L., Bottema, J., Wittebrood, A.J.. Smet, P. D., Haszler, A., Vieregge, A.. Recent developments in aluminum alloys for theautomotive industry. Materials Science and Engineering 280 , 2000, pp.37–49.CrossRefGoogle Scholar
Wessel, J. K.. Handbook of advanced materials: enabling new designs.Vol. 3. John Wiley & Sons; 2004, pp.185–193.Google Scholar
Hayajneh, Mohammed T., Hassan, Adel Mahamood, Jaradat, Younis Mohammad. 2007. The Effect of Nickel Addition, Solution Treatment Temperature and Time on the Precipitation Hardening of (Al-Cu) Alloys. Jordan University of Science and Technology. 141. 1–5.Google Scholar
Sjolander, Emma, Seifeddine, Salem. 2010. The heat treatment of Al-Si-Cu-Mg casting alloys. Journal of Materials Processing Technology. XXX. 1–11.Google Scholar
Elsebaie, O., Mohamed, A.M.A., Samuel, A.M., Samuel, F.H., Al-Ahmari, A.M.A. 2011. The role of alloying additives and aging treatment on impact behavior of 319 cast alloy. Materials and Design. 32. 3205–3220.CrossRefGoogle Scholar
Tavitas-Medrano, F.J, Grusleski, J.E., Samuel, F.H., Valtierra, S., Doty, H.W.. 2008. Materials Effect of Mg and Sr-modification on the mechanical properties of 319-type aluminum cast alloys subjected to artificial aging. Materials Science and Engineering. 480. 356–364.CrossRefGoogle Scholar
Tash, M., Samuel, F.H., Mucciardi, F., Doty, H.W., Valtierra, S.. 2006. Effect of metallurgical parameters on the machinability of heat-treated 356 and 319 aluminum alloys. Materials Science and Engineering. 434. 207–217.CrossRefGoogle Scholar
Tibballs, J. E., Horst, J. A., Simensen, C. J.. 2001. Precipitation of αAl(Fe,Mn)Si from the melt. Journal of Materials Science. 36. 937–941.CrossRefGoogle Scholar
Bray, Jack W. 1990. Aluminum mill and Engineered wrought products. ASM International. ASM Handbook. Vol. 2, Properties and Selection: Non-ferrous alloys and Special-purpose materials. ASM International. USA. 165–166.Google Scholar
Zolotorevsky, Vdim S., Belov, Nicolai A., Glazoff, Michael V.. 2007. Alloying elements and dopants: Phase Diagrams. Elsevier. Casting Aluminum Alloys, vol. 1. Elsevier. Moscow, Pittsburgh. Russia-USA. 1–13.Google Scholar