Densification and Mechanical Properties of 439L Steel Composites Blended with Fifteen Micron-Size Silicon Carbide Particles

• Autorzy: Lee Sang Woo , Shin Hyunho , Rhee Kyong-Yop

Identyfikatory

DOI

10.24425/amm.2019.129466

• Języki publikacji: EN

Abstrakty

EN

439L stainless steel composites blended with fifteen micron SiC particles were prepared by uniaxial pressing of raw powders at 100 MPa and conventional sintering at 1350°C for 2 h. Based on the results of X-ray diffraction analysis, dissolution of SiC particles were apparent. The 5 vol% SiC specimen demonstrated maximal densification (91.5%) among prepared specimens (0-10 vol% SiC); the relative density was higher than the specimens in the literature (80-84%) prepared by a similar process but at a higher forming pressure (700 MPa). The stress-strain curve and yield strength were also maximal at the 5 vol% of SiC, indicating that densification is the most important parameter determining the mechanical property. The added SiC particles in this study did not serve as the reinforcement phase for the 439L steel matrix but as a liquid-phase-sintering agent for facilitating densification, which eventually improved the mechanical property of the sintered product.

Słowa kluczowe

EN

439L steel; silicon carbide; composites; densification; liquid phase sintering

• 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. 3
• Strony: 883--888
• Opis fizyczny: Bibliogr. 13 poz., fot., rys.

Twórcy

autor

Lee Sang Woo

• Kyunghee University, Department of Mechanical Engineering, Yongin, Gyoenggi-do 17104, Republic of Korea

autor

Shin Hyunho

• Gangneung-Wonju National University, Department of Materials Engineering, Gangneung, Gangwon-do 25457, Republic of Korea

autor

Rhee Kyong-Yop

• Kyunghee University, Department of Mechanical Engineering, Yongin, Gyoenggi-do 17104, Republic of Korea

Bibliografia

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Uwagi

EN

1. This research was supported by the Ministry of Trade, Industry & Energy (MOTIE), Korea Institute for Advancement of Technology(KIAT) and Ulsan Institute For Regional Program Evaluation(IRPE) through the Encourage-ment Program for The Industries of Economic Cooperation Region.

PL

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