Index Catalog // ScholarsArchive@OSU

Correlation of in-situ transmission electron microscopy and microchemistry analysis of radiation-induced precipitation and segregation in ion irradiated advanced ferritic/martensitic steels

Creator:: Zheng, Ce, Ke, Jia-Hong, Maloy, Stuart A., and Kaoumi, Djamel
Abstract:: This article presents a novel method combining ion irradiation, in-situ transmission electron microscopy (TEM), and microchemistry analysis before/after irradiation, which allows to examine same microstructural areas throughout ion irradiation. A 12 wt% Cr Ferritic/Martensitic steel (HT9) was irradiated in the TEM to 1.17 x 10(20) ions.m(-2) at 440 degrees C...
Resource Type:: Article
Full Text:: /martensitic steels Scripta Materialia 162 (2019) 460–464 Contents lists available at ScienceDirect Scripta

Investigation of Thermal Degradation in Structural Alloys for Nuclear Power Systems

Creator:: Teng, Fei
Abstract:: The thermal degradation of structural materials is considered to be a key factor for evaluating the lifetime of current nuclear power plants. Ni-based and Fe-based alloys, such as 690, 625, 304, and 316, are widely used in nuclear industry as structural components due to the extraordinary corrosion resistance and mechanical...
Resource Type:: Dissertation
Full Text:: ”. The chapter 2 manuscript will be submitted to Acta Materialia. Chapter 3 is the manuscript

Advancing the understanding of bulk metallic glasses as structural materials through exploration of mechanical properties

Creator:: Naleway, Steven E.
Abstract:: Bulk metallic glasses (BMGs) offer a great deal of potential through their near-theoretical strength, potentially high toughness and unique forming and molding traits. However, there are still a number of outstanding issues that bar their widespread use. This thesis describes the investigation of three research questions each designed to further...
Resource Type:: Masters Thesis

Effect of ambient environment on the fracture and fatigue properties of Zr-based bulk metallic glasses

Creator:: Philo, Sarah L.
Abstract:: The effect of ambient environment on the fatigue behavior of two Zr-Ti-Cu-Ni-Be bulk metallic glasses (BMGs) is examined in the present study. The first metallic glass, Zr₄₄Ti₁₁Ni₁₀Cu₁₀Be₂₅, was tested to establish the presence of an environmental effect in the fatigue growth curve measured in ambient air. Fatigue growth curves produced...
Resource Type:: Masters Thesis
Full Text:: Submitted to Scripta Materialia 1

Fatigue and fracture of bulk metallic glasses : role of free volume

Creator:: Launey, Maximilien E.
Abstract:: Deformation of metallic glasses requires the existence of free volume to allow atomic movement under mechanical loading. Accordingly, the present research seeks to understand how free volume variations in alloys of identical compositions affect the fatigue and fracture behavior. By annealing below the glass transition temperature, the free volume of...
Resource Type:: Dissertation

Development of nickel aluminide (NiAl) microchannel array devices for high-temperature applications

Creator:: Kanlayasiri, Kannachai
Abstract:: The miniaturization of Microtechnology-based Energy, Chemical and Biological Systems (MECS) is made possible by the use of high aspect ratio microchannel arrays to increase the surface-area-to-volume ratio of the flow conduits within the devices, resulting in an improvement in the heat and mass transfer performance of the devices. However, advantages...
Resource Type:: Dissertation

Effects of nickel addition In Cu-Zr-Hf-Al metallic glass matrix

Creator:: Miska, John
Abstract:: Metallic glasses (also referred to as amorphous metals) have been gaining interest in the materials science community in recent years. These amorphous materials demonstrate promising properties compared to their crystalline counterparts that include much higher strength and elastic strain limit, better corrosion and wear resistance, superior soft magnetism, and an...
Resource Type:: Honors College Thesis
Full Text:: , Scripta Materialia 116, 7-10 (2016) [13] D. Janovszky, M. Sveda, and A. Sycheva, Journal of Ther. Anal

Platinum Nanoparticles in Transition Alumina: An Atomic Resolution Study of Interfaces

Creator:: Clauser, Arielle L.
Abstract:: The phases of transition alumina are scientifically interesting due to their high specific surface area, favorable acid/ base characteristics, and chemical and hydrothermal stability which make this metallic oxide a prime candidate for use as a support for metallic nanoparticles (NPs) in heterocatalysis. Interactions at alumina/Pt interfaces are important for...
Resource Type:: Dissertation

Development and validation of a fatigue reliability method for bridging materials

Creator:: Gallops, Sarah
Abstract:: Toughened ceramics, or bridging ceramics, are being developed in an attempt to widen the application base of traditional ceramics, which are brittle and have low resistance to crack extension. The crack growth resistance of these extrinsically toughened ceramics has been shown to increase with crack length, and unlike traditional ceramics,...
Resource Type:: Dissertation

The effects of nanoparticle addition on the processing, structure and properties of SiC and AlN

Creator:: Onbattuvelli, Valmikanathan P.
Abstract:: Silicon carbide (SiC) and aluminum nitride (AlN) exhibit a combination of thermal and mechanical properties that are relevant to applications in electronics, aerospace, defense and automotive industries. However, the successful translation of these properties into final applications lies in the net-shaping of these ceramics into fully dense microstructures. Increasing the...
Resource Type:: Dissertation

ScholarsArchive@OSU

Correlation of in-situ transmission electron microscopy and microchemistry analysis of radiation-induced precipitation and segregation in ion irradiated advanced ferritic/martensitic steels

Investigation of Thermal Degradation in Structural Alloys for Nuclear Power Systems

Advancing the understanding of bulk metallic glasses as structural materials through exploration of mechanical properties

Effect of ambient environment on the fracture and fatigue properties of Zr-based bulk metallic glasses

Fatigue and fracture of bulk metallic glasses : role of free volume

Development of nickel aluminide (NiAl) microchannel array devices for high-temperature applications

Effects of nickel addition In Cu-Zr-Hf-Al metallic glass matrix

Platinum Nanoparticles in Transition Alumina: An Atomic Resolution Study of Interfaces

Development and validation of a fatigue reliability method for bridging materials

The effects of nanoparticle addition on the processing, structure and properties of SiC and AlN

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