Theses and Dissertations
Evaluation of Friction Stir Processing of HY-80 Steel Under Wet and Dry Conditions
(Monterey, California. Naval Postgraduate School, 2012-03)
This thesis describes the microstructural and mechanical property changes associated with Friction Stir Processing
(FSP) of HY-80 steel under dry and underwater conditions. HY-80 is a low-carbon alloy steel that is used ...
Friction stir processing parameters and property distributions in cast nickel aluminum bronze
(Monterey, California. Naval Postgraduate School, 2006-12)
Cast nickel-aluminum bronze (NAB) alloy is specified for many marine applications, including ship propellers, due to its excellent corrosion-resistance combined with acceptable mechanical properties. Friction stir processing ...
Analysis of the failure of a vacuum spin-pit drive turbine spindle shaft
(Monterey California. Naval Postgraduate School, 2005-09)
The Naval Postgraduate School's Rotor Spin Research Facility experienced a failure in the Spring of 2005 in which the rotor dropped from the drive turbine and caused extensive damage. A failure analysis of the drive turbine ...
Computer simulation of random and non-random second-phase distributions in two-phase materials
(Monterey, California: Naval Postgraduate School, 1990-12)
The mechanical properties of any material with a discontinuous second phase dispersed in a matrix are recognized to be influenced by the distribution of the second-phase particles. Current models for the prediction of ...
Microstructure characterization of friction-stir processed nickel-aluminum bronze through orientation imaging microscopy
(Monterey, California. Naval Postgraduate School, 2002-09)
The effect of friction-stir processing (FSP) on the microstructure of a cast nickel-aluminum bronze (NAB) material has been characterized by various micro-analytical methods including orientation imaging microscopy (OIM). ...
The effects of isothermal deformation and annealing on the microstructure of nickel-aluminum-bronze propeller material
(Monterey, California. Naval Postgraduate School, 2003-06)
This thesis is a study of annealing and isothermal deformation characteristics of cast Nickel-Aluminum Bronze (NAB) in relation to Friction Stir Processing (FSP) of this material. Cast NAB is widely utilized by the U.S. ...
Effect of prior warm rolling on the retained austenite content and hardening response of (VIM-VAR)--AISI M-50 steel
(1985-03)
The objective of warm rolling M-50 bearing steel is microstructural refinement which may lead to increases in rolling contact fatigue life. A consequence of this final hardening is that the austenitizing temperature used ...
Investigation of superplastic behavior in FSP 5083 aluminum alloy
(Monterey, California. Naval Postgraduate School, 2007-06)
Design, fabrication, and testing of a scalable series augmented railgun research platform
(Monterey, California. Naval Postgraduate School, 2006-03)
The design and material properties of rails and projectiles are critical to the success of the Navy railgun. This thesis addresses the design, fabrication, and testing of a scalable square bore electromagnetic railgun. ...
The influence of temperature and composition on the activation energy for creep in binary aluminum lithium alloys
(Monterey, California: Naval Postgraduate School, 1990-12)
With the fast pace of technology in the aerospace industry, there are increasing demands for higher strength and stiffness in structural materials but with reduced weight and improved formability. Aluminum alloys have been ...
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McNelley, Terry R. (67)
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Mechanical Engineering (67)