In-situ formed, ultrafine Al-Si composite materials: ductility

• Autorzy: Guba P. , Gesing A. , Sokolowski J. , Conle A. , Sobiesiak A. , Das S. , Kasprzak M.

Identyfikatory

DOI

DOI: 10.5604/01.3001.0013.3182

• Języki publikacji: EN

Abstrakty

EN

Purpose: The work objective includes optimization of the casting production and heat treatment processes that will simultaneously maximize the combination of strength, hardness, and ductility for hypereutectic Al-Si compositions with Si volume fractions of as much as 25 vol.%. In addition, such an in-situ formed composite alloy will attain a unique combination of low production cost, high potential recycled content, and functional characteristics suitable for mission critical aerospace and vehicular applications. Design/methodology/approach: The unique High Pressure Die Casting Universal Metallurgical Simulator and Analyser (HPDC UMSA) was used for melting, cyclic melt treatment, and solidification of the hypereutectic Al-Si-X (A390). The produced as-cast structures contained colonies of nano-diameter Si whiskers and other morphologies, and absence of primary silicon particles. Heat treated structures rendered nano and ultrafine metal matrix composites. Findings: New developed as-cast Al-Si materials containing nano-diameter Si whiskers, without primary silicon particles required ultra short time heat treatment to result in nano and ultrafine metal matrix composite, rendering their hardness, strength and wear resistance, and the same time retaining toughness and ductility. Research limitations/implications: The cast samples were produced in laboratory conditions and potential tensile strength was estimated from empirical correlation with micro-hardness measurements. In the future, the comprehensive mechanical properties need to be tested. Practical implications: These ultrafine Si, Al-MMCs can be net-shape formed by modified HPDC technology or consolidated from spray-atomized alloy powder. Originality/value: Optimization of the entire production process for the hypereutectic Al-Si alloy compositions achieved a uniform distribution of ~ 25 vol.% of ultrafine Si particles in ductile FCC-Al matrix further reinforced by age hardening with nano-scale spinodal GP-zones. The associated mechanical property and ductility improvements will open a wide range of critical lightweighting components in transportation: aerospace, terrestrial vehicle and marine to the optimized hypereutectic Al-Si alloys. Presently, these components do not use the commercial HPDC A390 alloys due to their limited ductility and strength. Proposed new technology will allow conversion of various cast airspace alloys with ultrahigh mechanical properties to the automotive applications.

Słowa kluczowe

EN

ultrafine Al-Si composite; Al metal matrix; hypereutectic Al alloys; mechanical properties; high ductility

PL

osnowa metalowa; stop nadeutektyczny; właściwości mechaniczne; ciągliwość

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2019
• Tom: Vol. 92, nr 1-2
• Strony: 5--12
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Guba P.

• Department of Mechanical, Automotive & Materials Engineering, University of Windsor, # 2175 CEI, 401, Windsor, ON, N9B 3P4, Canada

autor

Gesing A.

• Phinix L.L.C., 7730 Carondelet Ave., Suite 110, Clayton, MO, 63105, USA

autor

Sokolowski J.

• Department of Mechanical, Automotive & Materials Engineering, University of Windsor, # 2175 CEI, 401, Windsor, ON, N9B 3P4, Canada

autor

Conle A.

• Department of Mechanical, Automotive & Materials Engineering, University of Windsor, # 2175 CEI, 401, Windsor, ON, N9B 3P4, Canada

autor

Sobiesiak A.

• Department of Mechanical, Automotive & Materials Engineering, University of Windsor, # 2175 CEI, 401, Windsor, ON, N9B 3P4, Canada

autor

Das S.

• Phinix L.L.C., 7730 Carondelet Ave., Suite 110, Clayton, MO, 63105, USA

autor

Kasprzak M.

• Department of Power Electronics, Electrical Drives and Robotics, Silesian University of Technology, ul. B. Krzywoustego 2, 44-100 Gliwice, Poland

Bibliografia

• [1] P. Guba, Development of Novel Nano – Single Si Phase Cast Hypereutectic Al-Si Alloys, PhD thesis, University of Windsor, 2017.
• [2] P. Guba, A.J. Gesing, J. Sokolowski, A. Conle, A. Sobiesiak, S.K. Das, In situ-formed, low-cost, Al-Si nanocomposite materials, Journal of Achievements in Materials and Manufacturing Engineering 84/1 (2017) 5-22, DOI: 10.5604/01.3001.0010.7564.
• [3] J. Gilbert Kaufman, Introduction to Aluminum Alloys and Tempers, Chapter 4: Understanding the Aluminum Temper Designation System, 2000, ASM International, 39-76, DOI: 10.1361/iaat2000p039.
• [4] E. Ogris, Development of Al-Si-Mg Alloys for Semi-Solid Processing and Silicon Spheroidization Treatment for Al-Si Cast Alloys, PhD thesis, Swiss Federal Institute of Technology Zurich, 2002, DOI: 10.3929/ethz-a-004456013.
• [5] R. Khorshidi, A. Honarbakhsh Raouf, M. Emamy, J. Campbell, The study of Li effect on the microstructure and tensile properties of cast Al-Mg2Si metal matrix composite, Journal of Alloys and Compounds 509 (2011) 9026-9033, DOI: 10.1016/j.jallcom.2011.07.012.
• [6] X. Zhang, C. Shi, E. Liu, F. He, L. Ma, Q. Li, J. Li, W. Bacsa, N. Zhao, C. He, Achieving High Strength and High Ductility in Metal Matrix Composites Reinforced with Discontinuous Three-Dimensional Graphene-Like Network, Nanoscale 33 (2017) 11929-11938, DOI: 10.1039/C6NR07335B.
• [7] J.H. Sokolowski, W.T. Kierkus, M.S. Kasprzak, W.J. Kasprzak, HPDC Universal Metallurgical Simulator and Analyzer (HPDC UMSA) technology platform, US Patent No.: 7,354,491 B2.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).