X-Ray Diffraction Residual Stress Measurements for Quality Control Testing
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2007, Vol 30, Issue 1
Abstract
This paper present the primary difficulties which are associated with the obtaining and interpreting surface X-ray diffraction residual stress results: the surface stresses may be identical for the shoot peening, nitriding and grinding parameters; many machining and grinding metal removal processes can generate local fluctuations in the surface residual stress; for many material removal and surface treatment processes the depth of penetration of the X-ray beam is quite shallow and can cause experimental error in the measurement of the surface stress. The stress distributions by conventional and abusive grinding of 4340 steel, the surface residual stresses for 5160 steel leaf springs shot peened may prohibit the use of non-destructive surface stress measurements.
Authors and Affiliations
Constantin GHEORGHIEŞ, Alina CANTARAGIU, Iuliana Valentina STASI
Destruction of the Inside Part of a Coat of a Hard Chrome Cylinder Used for Combustion Engines
This paper had as a starting point the broken down through explosion suffered by the coat of a cylinder made of cast iron. The cylinder coat material must provide the necessary resistance to dynamic and static stresses a...
Time Scales of Physico-Chemicaly Driven Processes in Desulphurization CaO-Al2O3 Slag
The paper is dealing with the expression of times scales associated to different physically and physico-chemically driven processes taking place on the slag side of the interface CaO-Al2O3 slags-steel, specific to the st...
Laser Deposition of Bronze Aluminum on Steel Support
In order to rise the wear and corrosion resistance of 0.45% C superficial steel layers, a multilayer coating was tested by injection of powder with 88.3% Cu; 9.5% Al; 2.2% Fe in melted bath by CO2 continuous wave laser....
Studies and Research on Determining the Cause of the Cracking of X60 Pipeline in the Expanding Operation
In this paper was followed the determination of the cause of pipe cracking in the expansion operation. The metallographic analysis of a sample taken from the X60 pipeline was performed to determine the cause of pipe crac...
Computer Vision System for Detection of Passenger Sleeping State for Advanced Driver Assistance Systems
The goal of this research is to develop an in-vehicle computerized system able to warn the driver, to assess the passenger’s state of sleeping in order to avoid affecting the driver psychologically and induce drowsiness....