Next Article in Journal
Reaction Mechanism and Distribution Behavior of Arsenic in the Bottom Blown Copper Smelting Process
Previous Article in Journal
X-ray Tomography Characterisation of Lattice Structures Processed by Selective Electron Beam Melting
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Metals 2017, 7(8), 301; doi:10.3390/met7080301

Effects of Vacuum-Carburizing Conditions on Surface-Hardened Layer Properties of Transformation-Induced Plasticity-Aided Martensitic Steel

1
School of Science and Technology, Shinshu University, Nagano 380-8553, Japan
2
Institute for Materials Research, Tohoku University, Sendai 980-8557, Japan
3
Ichinomiya Works, Sintokogio, Ltd., Toyokawa 441-1205, Japan
*
Author to whom correspondence should be addressed.
Received: 10 July 2017 / Revised: 29 July 2017 / Accepted: 3 August 2017 / Published: 5 August 2017
View Full-Text   |   Download PDF [4269 KB, uploaded 5 August 2017]   |  

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. View Full-Text
Keywords: vacuum-carburization; carbon potential; fine-particle peening; TRIP-aided martensitic steel; retained austenite; microstructure; hardness; residual stress vacuum-carburization; carbon potential; fine-particle peening; TRIP-aided martensitic steel; retained austenite; microstructure; hardness; residual stress
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Sugimoto, K.-I.; Hojo, T.; Mizuno, Y. Effects of Vacuum-Carburizing Conditions on Surface-Hardened Layer Properties of Transformation-Induced Plasticity-Aided Martensitic Steel. Metals 2017, 7, 301.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top