Effects of Si Addition on Microstructure and Mechanical Properties of the Al Alloys with High Cr Content Prepared by Gas Atomization and SPS Processes

• Autorzy: Kim Yong-Ho , Oh Ik-Hyun , Yoo Hyo-Sang , Park Hyun-Kuk , Lee Jung-Han , Son Hyeon-Taek

Identyfikatory

DOI

10.24425/amm.2020.133215

• Języki publikacji: EN

Abstrakty

EN

This research describes effects of Si addition on microstructure and mechanical properties of the Al-Cr based alloys prepared manufactured using gas atomization and SPS (Spark Plasma Sintering) processes. The Al-Cr-Si bulks with high Cr and Si content were produced successfully using SPS sintering process without crack and obtained fully dense specimens close to nearly 100% T. D. (Theoretical Density). Microstructure of the as-atomized Al-Cr-Si alloys with high contents of Cr and Si was composed multi-phases with hard and thermally stable such as Al₁₃Cr₄Si₄, AlCrSi, Al₈Cr₅ and Cr₃Si intermetallic compounds. The average hardness values were 703 Hv for S5, 698 Hv for S10 and 824 Hv for S20 alloy. Enhancement of hardness value was resulted from the formation of the multi-intermetallic compound with hard and thermally stable and fine microstructure by the addition of high Cr and Si using rapid solidification and SPS process.

Słowa kluczowe

EN

Al-Cr-Si; gas atomization; spark plasma sintering; powder; rapid solidification

• 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: 2020
• Tom: Vol. 65, iss. 3
• Strony: 1045--1049
• Opis fizyczny: Bibliogr. 15 poz., fot., rys., tab.

Twórcy

autor

Kim Yong-Ho

• Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 Beon-gil, Bul-gu, Gwangju, 61012, Republic of Korea

autor

Oh Ik-Hyun

• Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 Beon-gil, Bul-gu, Gwangju, 61012, Republic of Korea

autor

Yoo Hyo-Sang

• Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 Beon-gil, Bul-gu, Gwangju, 61012, Republic of Korea

autor

Park Hyun-Kuk

• Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 Beon-gil, Bul-gu, Gwangju, 61012, Republic of Korea

autor

Lee Jung-Han

• Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 Beon-gil, Bul-gu, Gwangju, 61012, Republic of Korea

autor

Son Hyeon-Taek

• Korea Institute of Industrial Technology, 6 Cheomdan-gwagiro 208 Beon-gil, Bul-gu, Gwangju, 61012, Republic of Korea

Bibliografia

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Uwagi

EN

1. This study has been conducted with the support of the Korea Institute of Industrial Technology (No. EO200004) and supported by ‘Energy Efficiency & Resources Core Technology Program’ of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea. (No. 2018201010633B).

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).