โ Scribed by Donald T.C Huo; Ching H Ma
No coin nor oath required. For personal study only.
The effects of shock-loading on Young's Moduhzs of 1018 carbon steel and the activation energy of recovery were studied. The shock pressures employed were 104 and 304 kbars respectively. The results are explained in terms of Mott's defect Modulus theory and the theory of &going hardening. It was found that the activation energy of diffusion during recovery is different between the specimens shock-loaded to 104 and to 304 kbsrs. This difference in activation energies is attributed to the difference in vacancy concentrations. EFFETS DUNE MISE EN CHARGE BRUTALE SUR LE MODULE D'YOUNG ET SUR L'ENERGIE D'ACTIVATION DE RESTAURATION DANS LACIER 1018 On a etudie les effets d'une mise en charge nar choc sur le Module d'Younn dun acier 1018 et sur l'energie d'activation de sa restauration, et 304 kbars. L& pressions de choc employees v&Gent respectivement 104 Les r&u&ats sont expliques a partir de 1s theorie de Mott et de la theorie du durcissement struotural. On a trouve des energies d'activation de diffusion durant la restauration differentes pour les Bchantilions soumis a 104 et 304 kbars. Cette diff&ence entre les energies d'aetivation est attribu&e & une difference dans les eon~ntrations de lacunes. EINFLU9 DER SCHOCKVERFORMUNG AUF DEN YOUNG-MODUL UND DIE AKTIVIERUNGS-ENERGIE DER ERHOLUNG IN 1018~STAHL Der Eintlull der Schockverformung auf den Young-Modul und die Aktivierungsenergie der Erholung in lOI&Stahl wurde untersucht. Die angewandten Drucke waren 104 und 304 kbar. Die Ersebnisse werden anhand der Mott-Theorie und der Theorie der Verfestimms durch Altern erkliirt. Die Aktivierungsenergie der Diffusion w&brend der Erhohmg ist verschieodenWfiir Proben, die bis 104 bzw. bis 304 kbars schock-belastet wurden. Diese Differenz wird uuterschiedlichen Leerstellenkonzentrationen zugeschrieben. EXPERIMENTAL TECHNIQUES 1. Explosive loading Specimens of 1018 steel, in the form of ) in. x fin. x 2 in. rectangular bars, were annealed at
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๐ SIMILAR VOLUMES
## Abstract The aim of this study was to examine the influence of the Young's modulus of the implant material on the bone remodeling in a loaded condition. A combined animal experimental and computational study was set up. The animal experimental group comprised of 16 Saanen goats, each receiving o
Weaned male Wistar rats were fed ad libitum besides standard pellets a normal-protein (NP), a low-protein (LP) and a high-fat (HF) diet for different periods of time. In comparison to rats on the NP diet the body weight of the LP group was significantly lower after seven weeks fecding, not after a d