TY  - JOUR
T1  - Effects of Deep Cryogenic Treatment on the Microstructural Properties of Medium Carbon Spring Steels
AU  - Ozden, Reşat Can
AU  - Lokcu, Ersu
AU  - Anık, Mustafa
PY  - 2020
DA  - December
JF  - The Eurasia Proceedings of Science Technology Engineering and Mathematics
JO  - EPSTEM
PB  - ISRES Publishing
WT  - DergiPark
SN  - 2602-3199
SP  - 5
EP  - 8
VL  - 11
LA  - en
AB  - The cryogenic treatment is a complementary procedure that has been applied to a variety of materials to improve their mechanical and physical properties. It was first commercially recognized as an effective method in achieving complete martensitic transformation in the alloyed steels. In this study, microstructural investigations were carried out in order to relate the microstructural properties to the mechanical properties following the cryogenic treatment. For this purpose, the conventional heat treatment (CHT) and the deep cryogenic treatment (DCT: -196°C) procedures were applied to various medium carbon spring steels. Microstructural examinations were carried out by using scanning electron microscopy. The martensite lattice parameters and the amount of retained austenite were measured by using a high-resolution X-ray diffractometer. Rietveld analysis was used to deconvolute the overlapping peaks of martensites.
KW  - Steels
KW  - Cryogenic Treatment
KW  - Microstructure
KW  - Alloying
CR  - Lobodyuk, V. A., Meshkov, Y. Y., & Pereloma, E. V. (2019). On Tetragonality of the Martensite Crystal Lattice in Steels. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 50(1), 97–103. https://doi.org/10.1007/s11661-018-4999-z
CR  - Lu, Y., Yu, H., & Sisson, R. D. (2017). The effect of carbon content on the c/a ratio of as-quenched martensite in Fe-C alloys. Materials Science and Engineering A, 700(April), 592–597. https://doi.org/10.1016/j.msea.2017.05.094
CR  - Maruyama, N., Tabata, S., & Kawata, H. (2020). Excess Solute Carbon and Tetragonality in As-Quenched Fe-1Mn-C (C:0.07 to 0.8 Mass Pct) Martensite. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 51(3), 1085–1097. https://doi.org/10.1007/s11661-019-05617-y
CR  - Nishiyama, Z. (1978). Martensitic Transformation. (M. E. Fine, M. Meshii, & C. M. Wayman, Eds.). Kawasaki: Academic Press Inc.
CR  - Özden, R., & Anik, M. (2020). Enhancement of the mechanical properties of EN52CrMoV4 spring steel by deep cryogenic treatment Verbesserung der mechanischen Eigenschaften von EN52CrMoV4 Federstahl durch Tieftemperaturbehandlung. Materialwissenschaft Und Werkstofftechnik, 51, 422–431. https://doi.org/10.1002/mawe.201900122
CR  - Su, Y. Y., Chiu, L. H., Chen, F. S., Lin, S. C., & Pan, Y. T. (2014). Residual stresses and dimensional changes related to the lattice parameter changes of heat-treated JIS SKD 11 tool steels. Materials Transactions, 55(5), 831–837. https://doi.org/10.2320/matertrans.M2014031
CR  - Villa, M., Hansen, M. F., & Somers, M. A. J. (2017). Martensite formation in Fe-C alloys at cryogenic temperatures. Scripta Materialia, 141, 129–132. https://doi.org/10.1016/j.scriptamat.2017.08.005
UR  - https://dergipark.org.tr/en/pub/epstem/article/836144
L1  - https://dergipark.org.tr/en/download/article-file/1432002
ER  -