Theses and Dissertations
An X-ray diffraction investigation of infinity-Al2O3 addition to yttria stabilized zirconia (YSZ) thermal barrier coatings subject to destabilizing vanadium pentoxide (V2O5) exposure
(Monterey, California. Naval Postgraduate School, 1993-09)
Since the mid 1970's the U.S. Navy has used Yttria-stabilized zirconia ( YSZ ) as thermal barrier coatings for hot stage gas turbine components. Use of low cost, high contaminant, fuels has led to shortened component life ...
The quantitative microstructural characterization of multipass TIG ultra low carbon bainitic steel weldments and correlation with mechanical properties
(Monterey, California. Naval Postgraduate School, 1993-09)
The U.S. Navy has maintained a continuous research, development and certification program in ULCB steels as a possible replacement for the HY and HSLA steels currently being used in ship construction. The overall aim of ...
The study of GMA welds with different cover gas compositions on HSLA-100 steel
(Monterey, California. Naval Postgraduate School, 1993-09)
The purpose of this study was to investigate the effect of varying cover gas compositions on the microstructure and mechanical properties of single run gas-metal arc welds (GMAW) on HSLA-100 plate and seven different cover ...
Correlation of flux composition and inclusion characteristics with submerged arc weld metal properties in HY-100 steel
(Monterey, California. Naval Postgraduate School, 1993-09)
Submerged arc weldments of HY-100 steel prepared under standard conditions with five commercially available fluxes were analyzed to discern a basis for the variation in mechanical properties associated with different flux ...
Characterization of ultra-low carbon bainitic steels for use as weld wire consumables
(Monterey, California. Naval Postgraduate School, 1994-09)
The use of Ultra-Low Carbon Bainitic (ULCB) steels for weld wire applications is an area of current interest to the U. S. Navy and is being jointly studied by the Naval Postgraduate School and the Naval Surface Warfare ...
The Effect of Titanium Inclusions on HY-80 GMA Weld Deposits
(Monterey, California: Naval Postgraduate School., 1990-12)
HY-80-steels are used in submarine and ship construction and it has been found that small additions of titanium to this steel during manufacture markedly improve the fracture toughness of the 'heat affected zone (HAZ) of ...
A study of the microstructural basis for the strength and toughness properties of overaged HSLA-100 steel
(Monterey, California. Naval Postgraduate School, 1991-06)
A certification program for the use of HSLA steel in ship construction is currently being funded by the U.S. Navy. Integral to this program is the characterization of the microstructure of the highly weldable HSLA-100 ...
A study of the microstructural basis for the strength and toughness properties of as-quenched and quenched and tempered high copper HSLA-100 steel
(Monterey, California. Naval Postgraduate School, 1991-12)
A program for the use of high copper HSLA-100 steel as
a replacement for HY-130 in ship construction is in progress
at the David Taylor Naval Research Center in Annapolis,
Maryland. The characterization of the microstructure ...
The effect of water temperature on underbead cracking of underwater wet weldments
(Monterey, California. Naval Postgraduate School, 1997-09)
Specifications for Underwater Welding have not yet addressed the effect of water temperature on weldment microstructure. The environmental effects on Underwater Wet Welding using a shielded metal arc welding (SMAW) process ...
Microchemical analysis of non-metallic inclusions in C-MN steel shielded metal arc welds by analytical transmission electron microscopy
(Monterey, California. Naval Postgraduate School, 1998-06-01)
Microchemical analyses of the inclusions present in several shielded metal-arc steel weld metals were made by analytical transmission electron microscopy (TEM). Low alloy C-Mn steel weld metal samples were studied in which ...
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Advisor
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Fox, Alan G. (21)
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Branch Of Service
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Lieutenant, United States Navy (21)
Date Issued
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Mechanical Engineering (21)