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Showing 1 to 17 of 17 for “"cold work"”.
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Stored Energy of Cold Work Changes Induced by Cyclic Deformation
Made available in DSpace on 2014-12-10T17:25:36Z (GMT). No. of bitstreams: 1 6612343.pdf: 2266804 bytes, checksum: ddcac6fc0f14c4d75fc8b836f6deee44 (MD5) Previous issue date: 1966
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The Internal Friction Cold Work Peak in The Niobium - Nitrogen System
Made available in DSpace on 2014-12-12T01:03:58Z (GMT). No. of bitstreams: 1 7105075.pdf: 6809901 bytes, checksum: a909a9243feb5d2c6db01a610644d038 (MD5) Previous issue date: 1970
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The effect of rate of cooling and cold work on the hardness and grain size of type metal
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1932.
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The properties and the deformation by cold work of the silver-rich solid-solution alloys in the system silver-magnesium
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mining and Metallurgy, 1967.
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Influence of surface hardening on single crystal nickel-based superalloys
… mechanical shot peening (MSP) and deep cold rolling (DCR), on the microstructures of single crystal nickel-based superalloys. These alloys have excellent high temperature properties, and consist of a randomly substituted face centred cubic matrix phase known as γ, together with a large …
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A study of the recrystallization and the mechanical properties of indium
… temperature of indium, no further work was done on the single crystals.</p> <p>The effect of recrystallization on electrical resistance, thermoelectric force, hardness, bending strength, crystallographic orientation and microstructure was studied. The range of recrystallization …
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Electrical Resistance Studies of Hydrogen Diffusion and of Hydride Precipitation in Niobium
… indiced by hydride precipitation and by cold work removed the curvature, and increased the fitted values of Do and Q in D = D(,o)e('-Q/kT). These effects are considered to be due to dislocation trapping of H. The undeformed data were fit to the Flynn-Stoneham quantum tunneling model of …
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Ageing and strengthening of cold-rolled Al-Mg(-Cu)-Si-Mn alloys: experimental analysis and modelling
… identified that influence the final strength of cold rolled alloys during ageing: solid solution, work hardening, recovery and precipitation. Microstructure analyses revealed the formation of undissolved particles consuming the small Si addition, which influences age hardening behaviour of the …
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Contact fatigue : life prediction and palliatives
… residual stresses without significant cold work at the surface. A mechanics based approach to the selection of palliatives is addressed.
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Effect of Heat Treatment on Magnetic and Mechanical Properties of an Iron-Cobalt-Vanadium-Niobium Alloy
… mechanical and magnetic properties of heavily cold work strip of a 48 wt.% iron-48 wt.% cobalt-2 wt.% vanadium alloy with a 0.3 wt.% addition of niobium. For heat treatments between 640 and 740°C for 1 hour the tensile and yield strengths and ductility of the alloy were all found to be superior …
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Search for valence transitions in MgEu alloys
… crossover of certain Eu ions due to cold-work has been observed for the first time. This valence transition appears to be of the inhomogeneous, mixed Valence type.</li> <li>The apparent enhancement of the Eu(2+) moment has been observed for the first time. The degree of enhancement …
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Erdviniai objektai “suknelės Šalčio karalienei” /
There in the final bachelor degree work is being described a concept of dress, being analyzed floristic dresses, their richness and variety. There has been made a classification according to purpose and plants quantity. Flower pictures are available on the dresses, fixed real flowers or the fabric …
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Microstructure and precipitation effects in inconel alloy 600.
… titanium and aluminium contents, grain size and cold working, with precipitation reactions which occur during heat treatments similar to those experienced as a consequence of commercial PWR Steam Generator (SG) tube processing. In order to carry out this investigation commercial material was …
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Order hardening of platinum alloys
The hardening behaviour of three cold-worked platinum alloys, Pt 5 at% Mo, Pt 5 wt% Ru and Pt 5 wt% Cu, has been investigated through a systematic series of heat treatments. All three of the experimental alloys showed a hardness increase during annealing within a specific temperature range. The …
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A study of the microstructural and mechanical properties of novel spring steels.
This work is concerned with track spring components manufactured by Pandrol from a SiMn alloy in the quenched and tempered condition. For many years low to medium carbon based spring steel has been manufactured via an oil quench temper route producing components with suitable mechanical and …
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Understanding the mechanisms and parameters affecting the structural corrosion of sheet gauge 7xxx alloys
… zone. Most published structural corrosion work on 7xxx alloys has been associated with plate gauge applications with thicknesses greater than 10mm. However, for automotive applications, sheet type with thicknesses of 1.5 to 2.8mm is desired, as it enables weight reduction without loss of …