Evaluation of stress-strain behavior of surface treated steels by X-ray diffraction

• Type: Article in International Scientific Journal
• Date: 2012

Authors

L. Coelho (Author) FEUP; A. C. Batista (Author) FEUP; J. P. Nobre (Author) FEUP; M. J. Marques (Author) FEUP

Journal

Title: Central European Journal of Engineering

Vol. 2 No. 1

Pages: 91-95

ISSN: 1896-1541

Publisher: De Gruyter Open

Indexing

Scopus - 0 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering > Mechanical engineering

Other information

Authenticus ID: P-00G-1QZ

DOI: 10.2478/s13531-011-0051-4

Abstract (EN): X-ray diffraction assisted four-point bending method (XRDABM) enables to analyze the evolution of surface stress with the strain during bending of specimens. This experimental methodology was used to characterize the stressstrain behavior of two plasma nitriding steels, DIN 40 Cr Mn Mo 7 and DIN 32 Cr Mo V 13, with gradients of mechanical properties across the surface layers, allowing the characterization of the in-depth evolution of the local yield strength in the nitrided layer. The results show a significantly increase of the yield strength of the nitride layers and a good agreement between the in-depth evolution of the yield strength and the XRD peak breadth for the two nitrided steels. © Versita sp. z o.o.

Language: English

Type (Professor's evaluation): Scientific