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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Carburizing"”.
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Certain procedures in utilizing Kansas natural gas as a carburizing agent
Call number: LD2668 .T4 1951 J36
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Certain procedures in utilizing Kansas natural gas as a carburizing agent
Call number: LD2668 .T4 1951 J36
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Austenite grain-size control at elevated temperature in microalloyed carburizing steels
Includes bibliographical references (pages 194-208).
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The effects of carburizing environments on elevated temperature fatigue crack growth behavior in the nickel-base superalloy nimonic 115
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1981.
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Microtruss Design for Strength and Energy Absorption
… namely nanocrystalline nickel electroplating and carburizing. In terms of strength, both compositing approaches produced microtrusses with superior performance. Additionally, the strength property was optimized using classical optimization approaches since the strength is determined by the onset …
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Theoretical analysis and experimental investigation of contact fatigue and surface damage in prealloyed and diffusion bonded sintered steels
… and time, and applying strengthening treatments: carburizing and shot peening on prealloyed (homogenous microstructure) and carburizing, sinterhardening and through hardening on diffusion bonded (heterogeneous microstructure) steels. The theoretical resistance to subsurface and surface crack …
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Computer simulation of carburization corrosion of nickel-base superalloys
… corrosion behavior of Ni-based superalloys in carburizing atmospheres. The model is based on Crank-Nicholson finite difference solution of the diffusion equation. The code also includes the ternary cross diffusion effect due to substitutional alloying elements that are preferentially oxidized. …
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Axial Cyclic Response of Unnotched and Notched Carburized Cylindrical Members Under Constant Amplitude Completely Reversed Loading
… indicate that more benefit will be accrued from carburizing sharply notched members as opposed to shallow notched members for the same case depth. Finite element stress analysis has been essential for the determination of the states of stress and strain at subsurface locations of interest. It is …
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Carbon Supported Metal Carbide Catalysts for the Reduction of Carbon Dioxide
… a catalyst involved increasing its porosity and carburizing added Mo using microwaves or electrical heating, focused on eliminating the need for methane and/or hydrogen for its preparation. Due to pyrophoricity risks, a multiple-test rig was built to study the catalysts preventing their exposure …
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Ductile and Compacted Graphite Iron Casting Skin - Evaluation, Effect on Fatigue Strength and Elimination
… of ferritic and pearlitic rims is explained by decarburizing/carburizing reactions at the mold/metal interface. Mg depletion and solidification kinetics effect were identified as the formation mechanisms of the graphite degradation. A 2-D thermal diffusion model was formulated based on Mg …
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Chemical vapor deposition of β-SiC thin films on Si(100) in a hot wall reactor
… correlated to the out—diffusion of Si in the carburizing process. On smooth Si(100) substrates, polycrystalline and stoichiometric β-SiC thin films with the (111) planes paralleling the Si(100) substrates were grown from a CH₃SiCl₃ (MTS)—H₂ mixture at 1050°C. At high H₂/MTS ratios and/or low …
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Surface degradation and creep of Inconel 617 and Haynes 230 at high temperatures
… to study oxidizing, reducing (low-pO2 gas), and carburizing phenomena. Short-term exposures were conducted from 850 to 1000oC and long-term exposures (up to 1512 h) were performed at 950oC. For the creep deformation studies, biaxial thermal creep behavior using a pressurized tube technique for …
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The Use of Secondary Ion Mass Spectrometry to Advance Integrated Process Technology for 2D Materials
… hydrogen annealing for the graphene CVD and carburizing for the hBN that resulted in high quality, mm-sized crystals. Next, we investigate contamination occurring from the gas phase during CVD process. In this context, we employ ToF-SIMS to evaluate carbon contamination arising during WS2 …