Effect of Solution Treatment on Mechanical Properties of Cast AZ91-(Ca) Alloys

• Autorzy: Jun Joong-Hwan

Identyfikatory

DOI

10.24425/amm.2019.126247

• Języki publikacji: EN

Abstrakty

EN

Effects of solution treatment on room temperature mechanical properties were studied in cast AZ91 (Mg-9%Al-1%Zn-0.2%Mn) and AZ91-0.5%Ca alloys. In as-cast state, the Ca addition contributed to the suppression of discontinuous β phase precipitation and the formation of Al₂ Ca phase. After solution treatment, the AZ91 alloy had only a small amount of Al₈ Mn₅ particles, while β and Al₂ Ca phases were still present in the Ca-containing alloy. In as-cast state, the AZ91-0.5%Ca alloy showed better yield strength and hardness than the AZ91 alloy. The solution treatment increased the elongation in both alloys, which eventually led to the increase in ultimate tensile strength. The solution treatment resulted in a marked decrease in yield strength and hardness in the AZ91 alloy, whereas the decrements in those values were relatively negligible in the Ca-containing alloy due to the residual phases and solution hardening effect of Ca.

Słowa kluczowe

EN

AZ91 alloy; calcium; mechanical properties; microstructure; solution heat treatment

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 1
• Strony: 265--269
• Opis fizyczny: Bibliogr. 19 poz., fot., rys., tab.

Twórcy

autor

Jun Joong-Hwan

• Korea Institute of Industrial Technology, Advanced Process and Materials R&D Group, Incheon 21999, Republic of Korea

Bibliografia

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Uwagi

EN

1. This study was supported by the Korea Institute of Industrial Technology (KITECH UR-18-0014).

PL

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