| Type of Document |
Master's Thesis |
| Author |
Wensley, Charles Alexander
|
| URN |
etd-01032006-203057 |
| Title |
Processing and Properties of Amorphous NiW Reinforced Crystalline Ni Matrix Composites
|
| Degree |
Master of Science |
| Department |
Materials Science and Engineering |
| Advisory Committee |
| Advisor Name |
Title |
| Aning, Alexander O. |
Committee Co-Chair |
| Kampe, Stephen L. |
Committee Co-Chair |
| Reynolds, William T. Jr. |
Committee Member |
|
| Keywords |
- Particulate Reinforcement
- Amorphous
- Mechanical Alloying
- Metal Matrix Composites
|
| Date of Defense |
2005-12-16 |
| Availability |
unrestricted |
Abstract
Metal Matrix Composites (MMCs) are used as structural materials because of their ability to have a combination of high strength and good ductility. A common problem with MMCs utiliz-ing vastly different materials is the difficulty in forming a strong matrix/reinforcement interface without suffering extensive dissolution, debonding, or chemical reactions between the compo-nents. In this work, a nickel base amorphous particulate reinforced crystalline nickel matrix composite is processed. The reinforcement, an equimolar NiW amorphous powder, was synthe-sized using the mechanical alloying process. The amorphous and crystalline nickel powders were blended in varying volume fractions and then consolidated using hot-isostatic pressing (HIP). This work reveals that the amorphous NiW reinforcement provides strength and hardness to the ductile Ni matrix while simultaneously maintaining a strong interfacial bond due to the similar chemistry of the two components. The strengthening achieved in the composite is attrib-uted to the particulate/matrix boundary strengthening.
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| Files |
| Filename |
Size |
Approximate Download Time
(Hours:Minutes:Seconds)
|
| 28.8 Modem |
56K Modem |
ISDN (64 Kb) |
ISDN (128 Kb) |
Higher-speed Access |
| |
CWensley-thesis.pdf |
3.27 Mb |
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