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Filtering by: Creator Rothery, P. Advisor Mcmullen, William D.

Effects of selected minor alloying additions on the structure deformation characteristics of beryllium

Creator:

Dooley, George Joseph, III

Abstract:

Solid solution alloying was employed in an attempt to produce some relatively ductile form of beryllium. If the c/a ratio could be significantly altered, it was felt new or different slip systems could be activated. The following elements were selected on the basis of atomic size, melting point, crystal structure...

Resource Type:

Dissertation

Full Text:

alloying beryllium with copper, nickel, gold, iron, and aluminum (61, p. 9). Of these alloys, beryllium
Low temperature deformation characteristics of yttrium single crystals

Creator:

Sokaski, Michael

Abstract:

First order prism slip in yttrium single crystals containing a total interstitial impurity content of about 200 wt ppm is almost entirely stage II deformation with a work hardening rate θ/μ of 2·10⁻ ³ . The athermal temperature is about 300°K. Below this temperature an interstitial mechanism is rate controlling...

Resource Type:

Dissertation

Full Text:

entirely stage II deformation with a work hardening rate 0/p of 2.10 3 . The athermal temperature is