Influence of vacuum carburizing treatment on fatigue crack growth characteristic in DSG2
##plugins.themes.bootstrap3.article.sidebar##
##plugins.themes.bootstrap3.article.main##
Abstract
The aim of this research is to clarify the influence of vacuum carburizing on the fatigue-crack progress
characteristics of DSG2 steel. The test specimen tempering material (QT material) and vacuum carburizing
material (VC material) has been used. The fatigue-crack progress was examined by subjecting the samples to
four-point bending. The loading-capacity fixed experiment was done using a maximum load of Pmax = 4000–
7000 N. The ?K fixed experiment was done using a load of ?K = 18–36 MPa?m.
The crack progress speed of VC material fell, after the high crack progress speed was shown, and after it
showed the minimum, it showed the tendency to go up again. This is considered to be what is depended on the
compressive residual stress given to the carburizing layer. From this, it is thinkable that there is a crack progress depression effect in a carburizing layer.
In VC material, a carburizing layer has a crack progress depression effect from a plunger-helix bottom to about
2.6 mm, and it turned out that it is larger than an effective carburizing layer. Moreover, in each ?K, it was
shown that depression effect revelation differs and the crack progress process accompanying it was able to be
shown typically.
Downloads
##plugins.themes.bootstrap3.article.details##
How to Cite
Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.
Open Access Statement
Frattura ed Integrità Strutturale (Fracture and Structural Integrity, F&SI) is an open-access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the DOAI definition of open access.
F&SI operates under the Creative Commons Licence Attribution 4.0 International (CC-BY 4.0). This allows to copy and redistribute the material in any medium or format, to remix, transform and build upon the material for any purpose, even commercially, but giving appropriate credit and providing a link to the license and indicating if changes were made.