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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 351 to 360 of 6929 (0.05 seconds)Spelling suggestions: "subject:"steel."" "subject:"ateel.""
| 351 |
Characterisation and wear performance of HVOF sprayed Cr-xC-y-NiCr coatingsWirojanupatump, Sittichai January 2000 (has links)
No description available.
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| 352 |
The chemical reactions of lithium monoxide with transition metalsChapman, Ricky A. January 1990 (has links)
No description available.
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| 353 |
The corrosion of steel in solutions containing carbon dioxideRahmat, A. B. January 1986 (has links)
No description available.
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| 354 |
Materials behaviour in liquid lithium and Pb-17LiLees, J. A. January 1986 (has links)
No description available.
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| 355 |
The effect of concrete coatings on pipeline corrosionNewton, C. J. January 1988 (has links)
No description available.
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| 356 |
Mathematical models in an integrated steel making plantRees, C. S. January 1986 (has links)
No description available.
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| 357 |
The elasto-plastic localised buckling behaviour of cold-formed sectionsJefferson, David January 1989 (has links)
No description available.
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| 358 |
Finite element analysis of bulging during the continuous casting of steel slabs and bloomsLeckenby, B. M. January 1986 (has links)
No description available.
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| 359 |
Influence of strain rate on oxide fractureMahmood, K. January 1988 (has links)
The ability of metals and alloys to form and retain protective oxide scales is crucial to their stability at elevated temperatures for extended times. Hence the identification of factors that promote or limit the integrity of oxides on high temperature materials has been the subject of intensive investigations. In the present study the mechanical properties of this chromium-rich scale on 304 stainless steel foil has been investigated in relation to the deformation rates in the substrate. It was shown that heavy cold working (up to 90%) delays the onset of breakaway oxidation and results in a very adherent scale. The cracking behaviour of the scale was found to be strain rate and temperature dependent under slow strain rate conditions when the substrate deforms by creep. No strain rate dependence was observed over the temperature range 700-900°C when faster strain rates (> 10⁻⁵ sec⁻¹) were applied. The transition between these two responses was found to vary only slightly with temperature between 5.0x10⁻⁵ sec⁻¹ and 7.8x10⁻⁵ sec⁻¹, increasing as the temperature is raised. A new method has been described for determining the fracture behaviour of oxide scale by estimating the composite defect size. From a knowledge of the onset of scale cracking, determined in situ using the acoustic emission technique, it was possible to correlate the measured intercrack spacing with the fracture toughness from which the tensile properties of the scale can be evaluated.
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| 360 |
Mist Characterization in Drilling 1018 SteelCole, Ian 08 1900 (has links)
Minimum quantity lubrication replaces the traditional method of flood cooling with small amounts of high-efficient lubrication. Limited studies have been performed to determine the characteristics of mist produced during MQL. This study investigated the mist concentration levels produced while drilling 1018 steel using a vegetable based lubricant. ANOVA was performed to determine whether speed and feed rates or their interactions have a significant effect on mist concentration levels and particle diameter. It was observed that the concentration levels obtained under all four speed and feed rate combinations studied exceeded the current OSHA and NIOSH standards.
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