The Precipitation Hardening of Continuous Ingots of AlSi2Mn and AlCu4MgSi Alloys

• Autorzy: Wróbel T. , Nuckowski P. M. , Jurczyk P.

Identyfikatory

DOI

10.24425/122525

• Języki publikacji: EN

Abstrakty

EN

The paper presents the research results of the influence of the precipitation hardening on hardness and microstructure of selected Al-Si and Al-Cu alloys obtained as ϕ30 mm ingots in a horizontal continuous casting process. The ingots were heat treated in process of precipitation hardening i.e. supersaturation with subsequent accelerated or natural ageing. Moreover in the range of the study it has been carried out investigations of chemical constitution, microscopic metallographic with use of scanning electron microscope with EDS analysis system, and hardness measurements using the Brinell method. On basis of obtained results it has been concluded that the chemical constitution of the investigated alloys enables to classify them into Al alloys for the plastic deformation as EN AW-AlSi2Mn (alternatively cast alloy EN AC-AlSi2MgTi) and as EN AW-AlCu4MgSi (alternatively cast alloy EN AC-AlCu4MgTi) grades. Moreover in result of applied precipitation hardening has resulted in the precipitation from a supersaturated solid solution of dispersive particles of secondary phases rich in alloying element i.e. Si and Cu respectively. In consequence it has been obtained increase in hardness in case of AlSi2Mn alloy by approximately 30% and in case of AlCu4MgSi alloy by approximately 20% in comparison to the as-cast state of continuous ingots.

Słowa kluczowe

EN

aluminum alloy; precipitation hardening; continuous casting; silicon; cooper

PL

stop aluminium; utwardzanie wydzieleniowe; odlewanie ciągłe; silikon; miedź

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 2
• Strony: 181--186
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Wróbel T.

• Silesian University of Technology, Department of Foundry Engineering, Towarowa 7, 44-100 Gliwice, Poland

autor

Nuckowski P. M.

• Silesian University of Technology, Institute of Engineering Materials and Biomaterials, Konarskiego 18A, 44-100 Gliwice, Poland

autor

Jurczyk P.

• Silesian University of Technology, Department of Foundry Engineering, Towarowa 7, 44-100 Gliwice, Poland; GZUT Odlewnia Sp. z o.o., Robotnicza 2, 44-100 Gliwice, PL

Bibliografia

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Uwagi

PL

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