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ABAQUS Analysis User's Manual, Volume II, III, IV, V. Version 6.5. ABAQUS, Inc. 2004.
Gounaris G. D., Papadopoulos C. A.: Crack Identification in Rotating Shafts by Coupled Response Measurements. Engineering Fracture Mechanics 69 (2002) 339-352.
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1. Roskosz M., Metal magnetic memory testing of welded joints of ferritic and austenitic steels, NDT&E International, 44 (2011) 305–310, doi:10.1016/j.ndteint.2011.01.008
2. Roskosz M., Bieniek M., Evaluation of residual stress in ferromagnetic steels based on residual magnetic field measurements NDT&E International, 45 (2012) 55–62, doi:10.1016/j.ndteint.2011.09.007
3. Kwaśniewski J, Roskosz M., Witoś M., Molski Sz., Applications of magnetometric sensors based on amorphous materials in diagnostics of wire ropes. Archives of Mining
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4. Kondej A., Baranowski M., Niedźwiedzki K., Jończyk. S., Szczepański A.: Automatic stand for NDT inspection using eddy current method. [in Polish]. Inżynieria Powierzchni 1 (2014), 57-62.
5. Babul T., Jończyk S., Samborski T., Włodarczyk S.: Detection of local inhomogeneity of the material and microstructure changes using eddy current method. [in Polish]. Przegląd Spawalnictwa 12 (2013), 25-28.
6. Babul T., Jończyk S., Samborski T.: Assessment of local defects in the microstructure - correlation measurements
Kinetic Measurements of Hydrogen Distribution between Different States in Exploited Steels
The Hydrogen Analyzer AV-1 equipped with the high resolution registration system has been used to measure the kinetics of hydrogen extraction and thus to distinguish the different states of hydrogen in metals. The hydrogen distribution between the various energetic states as measured in the pipe line ferrite-pearlite steels being in service for different time has been shown to depend on conditions and on time of exploitation. Results of such measurements may be used for assessing the life time of industrial installations.
The paper deals with the measurements of selected parameters during grinding process of aerospace industry alloy. Grinding is one of the most important methods of shaping machine elements. As a result of grinding with high dimensional and shape accuracy as well as with the expected parameters describing the state of the surface layer (SL) should be obtained. Grinding difficult to machine materials used in the aerospace industry is an issue currently being examined by various research centres. An excellent example is the analysis of the grinding process of titanium alloys, as these materials have very poor machinability due to the tendency to adherence to abrasive materials, low thermal conductivity, high strength and compliance at elevated temperatures, which may adversely impact on the quality of SL. A number of factors influence on shaping SL. Worth mentioning are mechanical and thermal phenomena, as well as the type of cutting fluid and abrasive materials
Temperature measurement using a Chx/porous silicon/Si structure encapsulated in a CO2 rich environment
This work reports on the possible use of microporous silicon as a temperature sensor. This work is based on previous published works [7, 8, and 9]. The device is based on hydrocarbon group (CHx) / porous silicon (PS) /Si structure. The porous sample was coated with hydrocarbons groups deposited by the plasma of methane /argon mixture. Current-voltage characteristics have been investigated as a function of temperature in the range 20°C-70°C. The results show that for a constant voltage in the range 0.7-1V, the current increases linearly with the environment temperature reaches a maximum at 70°C and then stabilizes. This result suggests that the developed structure can be used for sensing temperatures not exceeding 70°C.
A. Irekti, M. Oualit, H. Siahmed, D. Buncianu and F. Zibouche
. Ferraris C.F. Measurement of the rheological properties of high performance concrete: state of the art report. Journal of Research of the National Institute of Standards and Technology, 104(5) (1999) 461–478.
5. Cyr M., Legrand C., Mouret M. Study of the shear thickening effect of superplasticizers on the rheological behaviour of cement pastes containing or not mineral additives. Cement and Concrete Research, 30 (2000) 1477–1483.
6. Jayasree C., Gettu R. Experimental study of the flow behaviour of superplasticized cement paste. Materials and Structures, 41
Electrochemical polishing of metals and alloys is one of the most currently used finishing treatments, covering metallic biomaterials with complicated shapes (coronary stents, prostheses, etc.). A standard electropolishing (EP) process has been recently modified by including a magnetic field, and called the magnetoelectropolishing (MEP). Many surface properties and even mechanical features may be modified and improved by MEP. The changes are concerned with the surface film composition which undergo a modification. For the present studies, X-ray Photoelectron Spectroscopy (XPS) analysis was applied to measure the surface film composition on AISI 316L stainless steel. In conclusion both Cr-X/Fe-X compounds ratio as well as Cr/Fe total ratio of the 316L steel after EP and MEP were calculated and compared to reveal the advantage of the magnetic field used.