@article{e6b06d265ac9458f90cf3927f4ff6531,
title = "Effects of vacuum-carburizing conditions on surface-hardened layer properties of transformation-induced plasticity-aided martensitic steel",
abstract = "The effects of carbon potential in vacuum-carburization on the surface-hardened layer properties of the 0.2%C-1.5%Si-1.5%Mn-1.0%Cr-0.05%Nb transformation-induced plasticity-aided martensitic steel were investigated for the fabrication of precision gears. The volume fraction of retained austenite and hardness in the surface hardened layer of the steel increased with increasing carbon potential. Subsequent fine-particle peening enhanced the hardness and the compressive residual stress via severe plastic deformation and strain-induced martensite transformation, especially under a high carbon potential. The severe plastic deformation mainly contributed to increased hardness and compressive residual stress and the contribution of the strain-induced martensitic transformation was relatively small.",
keywords = "Carbon potential, Fine-particle peening, Hardness, Microstructure, Residual stress, Retained austenite, TRIP-aided martensitic steel, Vacuum-carburization",
author = "Sugimoto, {Koh ichi} and Tomohiko Hojo and Yuta Mizuno",
note = "Funding Information: This study was supported by a Grant-in-Aid for Scientific Research (B), The Ministry of Education, Science, Sports and Culture, Japan (No. 2013-25289262). We also thank Yuji Kobayashi from Sintokogio Ltd. for fine-particle peening, Company Executive Kuniharu Nishizawa from Okaya Heat Treatment Co., Ltd. for vacuum carburization, and Editage (www.editage.jp) for English language editing. Publisher Copyright: {\textcopyright} 2017 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2017",
month = aug,
day = "5",
doi = "10.3390/met7080301",
language = "English",
volume = "7",
journal = "Metals",
issn = "2075-4701",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "8",
}