Influence of Carbon Content on Austenite Stability and Strain-induced Transformation of Nanocrystalline FeNiC Alloy by Spark Plasma Sintering

• Autorzy: Oh Seung-Jin , Kim Byoung-Cheol , Suh Man-Chul , Shon In-Jin , Lee Seok-Jae

Identyfikatory

DOI

10.24425/amm.2019.129462

• Języki publikacji: EN

Abstrakty

EN

The effects of carbon content on the austenite stability and strain-induced transformation of nanocrystalline Fe-11%Ni alloys were investigated using X-ray analysis and mechanical tests. The nanocrystalline FeNiC alloy samples were rapidly fabricated using spark plasma sintering because of the extremely short densification time, which not only helped attain the theoretical density value but also prevented grain growth. The increased austenite stability resulted from nanosized crystallites in the sintered alloys. Increasing compressive deformation increased the volume fraction of strain-induced martensite from austenite decomposition. The kinetics of the strain-induced martensite formation were evaluated using an empirical equation considering the austenite stability factor. As the carbon content increased, the austenite stability was enhanced, contributing to not only a higher volume fraction of austenite after sintering, but also to the suppression of its strain-induced martensite transformation.

Słowa kluczowe

EN

FeNiC alloy; austenite stability; strain-induced transformation; spark plasma 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: 863--867
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wzory

Twórcy

autor

Oh Seung-Jin

• Chonbuk National University, Division of Advanced Materials Engineering, 567 Baekje-Daero, Deokjin-gu, Jeonju, 54896, Republic of Korea

autor

Kim Byoung-Cheol

• Korea Polytechnic University, Siheung, Republic of Korea

autor

Suh Man-Chul

• Korea Polytechnic University, Siheung, Republic of Korea

autor

Shon In-Jin

• Chonbuk National University, Division of Advanced Materials Engineering, 567 Baekje-Daero, Deokjin-gu, Jeonju, 54896, Republic of Korea

autor

Lee Seok-Jae

• Chonbuk National University, Division of Advanced Materials Engineering, 567 Baekje-Daero, Deokjin-gu, Jeonju, 54896, Republic of Korea

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Uwagi

EN

1. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1D1A1B03935163).

PL

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