Mechanical properties and wear resistance of magnesium casting alloys

• Autorzy: Dobrzański L. A. , Tański T. , Čížek L. , Domagała J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: In the following paper there have been the properties of the MCMgAl12Zn1, MCMgAl9Zn1, MCMgAl6Zn1, MCMgAl3Zn1magnesium cast alloy as-cast state and after a heat treatment presented. Design/methodology/approach: A casting cycle of alloys has been carried out in an induction crucible furnace using a protective salt bath Flux 12 equipped with two ceramic filters at the melting temperature of 750 ± 10*C, suitable for the manufactured material. The following results concern abrasive wear, mechanical properties, light and scanning microscopy. Findings: The different heat treatment kinds employed contributed to the improvement of mechanical properties of the alloy with the slight reduction of its plastic properties. Research limitations/implications: According to the alloys characteristic, the applied cooling rate and alloy additions seems to be a good compromise for mechanical properties and microstructures, nevertheless further tests should be carried out in order to examine different cooling rates and parameters of solution treatment process and aging process. Practical implications: The concrete examples of the employment of castings from magnesium alloys in the automotive industry are elements of the pedals, dashboards, elements of seats, steering wheels, wheel bands, oil sumps, elements and housings of the gearbox, framing of doors and sunroofs, and others, etc. Originality/value: Contemporary materials should possess high mechanical properties, physical and chemical, as well as technological ones, to ensure long and reliable use. The above mentioned requirements and expectations regarding the contemporary materials are met by the non-ferrous metals alloys used nowadays, including the magnesium alloys.

Słowa kluczowe

EN

heat treatment; mechanical properties; fracture mechanics; magnesium alloys

PL

obróbka cieplna; właściwości mechaniczne; mechanika pękania; stopy magnezu

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 1
• Strony: 83--90
• Opis fizyczny: Bibliogr. 25 poz., il., tab., wykr.

Twórcy

autor

Dobrzański L. A.

autor

Tański T.

autor

Čížek L.

autor

Domagała J.

• Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1] H. Baker, Physical properties of magnesium and magnesium alloys, The Dow Chemical Company, Midland 1997.
• [2] J. Cai, G. C. Ma, Z. Liu, H. F. Zhang, A. M. Wang, Z. Q. Hu, Influence of rapid solidification on the mechanical properties of Mg-Zn-Ce-Ag magnesium alloy, Materials Science Engineering A 456 (2007) 364-367.
• [3] P. Cao, M. Qian, H. StJohn, Effect of iron on grain refinement of high-purity Mg-Al alloys, Scripta Materialia 51 (2004) 125-129.
• [4] C. H. Chuang, J. C. Huang, P. J. Hsieh, Using friction stir processing to fabricate MgAlZn intermetallic alloys, Scripta Materialia 53 (2005) 1455-1460.
• [5] L. Čížek, L. Pawlica, R. Kocich, M. Janošec, T. Tański, M. Prażmowski, Structure and properties of Mg-Zr and Mg-Si alloys, Journal of Achievements in Materials and Manufacturing Engineering 27/2 (2008) 127-130.
• [6] L. Čížek, M. Greger, L. Pawlica, L. A. Dobrzański, T. Tański, Study of selected properties of magnesium alloy AZ91 after heat treatment and forming, Journal of Materials Processing Technology 157-158 (2004) 466-471.
• [7] L. A. Dobrzański, J. Domagała, T. Tański, A. Klimpel, D. Janicki, Laser surface treatment of magnesium alloy with WC and TiC powders using HPDL, Journal of Achievements in Materials and Manufacturing Engineering 28/2 (2008) 179-186.
• [8] L. A. Dobrzański, T. Tański, L. Čížek, Heat treatment impact on the structure of die-cast magnesium alloys, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 431-434.
• [9] D. Dube, M. Fiset, A. Countur, I. Nakatsugawa, Characterization and performance of laser melted AZ91D and AM60B, Materials Science and Engineering, A299 (2001) 39-45.
• [10] A. Fajkiel, P. Dudek, G. Sęk-Sas, Foundry engineering XXI c. Directions of metallurgy development and Ligot alloys casting, Publishers Institute of Foundry Engineering, Cracow, 2002.
• [11] H. Friedrich, S. Schumann, Research for a “New age of magnesium in the automotive industry”, Journal of Materials Processing Technology 117 (2001) 276-281.
• [12] E. F. Horst, B. L. Mordike, Magnesium Technology. Metallurgy, Design Data, Application, Springer-Verlag, Berlin Heidelberg, (2006).
• [13] W. Huanga, Ch. Dua, Z. Li, M. Liu, W. Liu, Tribological characteristics of magnesium alloy using N-containing compounds as lubricating additives during sliding, Wear 260 (2006) 140-148.
• [14] K. Ishikawa, H. Watanabea, T. Mukaib, High strain rate deformation behavior of an AZ91 magnesium alloy at elevated temperatures, Materials Letters 59 (2005) 1511-1515.
• [15] K. Iwanaga, H. Tashiro, H. Okamoto, K. Shimizu, Improvement of formability from room temperature to warm temperature in AZ31 magnesium alloy, Journal of Materials Processing Technology 155-156 (2004) 1313-1316.
• [16] K. U. Kainer, Magnesium-Alloys and Technology, Wiley-VH, Weinheim, Germany, 2003.
• [17] A. Kiełbus, T. Rzychoń, R. Cibis, Microstructure of AM50 die casting magnesium alloy, Journal of Achievements in Materials and Manufacturing Engineering 18 (2006) 135-138.
• [18] D. G. Leo Prakash, B. Prasanna, D. Regener, Computational microstructure analyzing technique for quantitative characterization of shrinkage and gas pores in pressure die cast AZ91 magnesium alloys, Computational Materials Science 32 (2005) 480-488.
• [19] X. Ming-Xu, Z. Hong-Xing, Y. Sen, L. Jian-Guo, Recrystallization of preformed AZ91D magnesium alloys in the semisolid state, Materials and Design 26 (2005) 343-349.
• [20] T. Rzychoń, A. Kiełbus, Microstructure of WE43 casting magnesium alloys, Journal of Achievements in Materials and Manufacturing Engineering 21 (2007) 31-34.
• [21] T. Tański, L. A. Dobrzański, L. Čížek, Influence of heat treatment on structure and properties of the cast magnesium alloys, Journal of Advanced Materials Research 15-17 (2007) 491-496.
• [22] R. M. Wang, A. Eliezer, E. Gutman, Microstructures and dislocations in the stressed AZ91D magnesium alloys, Materials Science and Engineering A344 (2002) 279-287.
• [23] C. Yan, L. Ye, Y. W. Mai, Effect of constraint on tensile behavior of an AZ91 magnesium alloy, Materials Letters 58 (2004) 3219-3221.
• [24] M. Yong, A. Clegg, Process optimisation for a squeeze cast magnesium alloy, Journal of Materials Processing Technology 145 (2004) 134-141.
• [25] J. Zhang, Z. X. Guo, F. Pan, Z. Li, X. Luo, Effect of composition on the microstructure and mechanical properties of Mg-Zn-Al alloys, Materials Science and Engineering A 456 (2007) 43-51.