𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The effect of quenched-in vacancies on the elastic modulus of aluminum

✍ Scribed by R.G Folweiler; F.R Brotzen


Publisher
Elsevier Science
Year
1959
Weight
536 KB
Volume
7
Category
Article
ISSN
0001-6160

No coin nor oath required. For personal study only.

✦ Synopsis


The effect of quenched-in vacancies upon the elastic modulus of aluminum was investigated. Equipment for the dynamic measurement of modulus changes was developed for this purpose. The presence of lattice vacancies was found to reduce the elastic modulus.

The change in modulus was investigated during annealing at room temperature subsequent to quenching.

The time relation of vacancy concentration observed was analogous to that determined by elertrical resistivity measurements. L'ACTION DES LACUNES GELEES PAR TREMPE SUR LE MODULE ELASTIQL-F: DE L'ALUMINIUM Les auteurs ont &udi& l'action des lacunes g&lCes par trempr sur la module klast,ique de l'alurniniun~. Dans ce but, ils ont conqu une installation de mesure dynamique des variations de module. La pr&cnrv de lacunes dans le reseau reduit le module Clastique. Les auteurs 6tudient les variations du module au tours du revenu B la temp&ttt,ure arnbiante aprks trempe. La relnt,ion obtenue pour la concentration des lacunes au cows du temps est analogur B celle que l'on dkduit des mesures de r&sistivitP blectrique. DER EINFLTTSS VON ARGESCHRECKTES LEERSTELLEN AUF DIE ELASTIZITXTKMODULI VON aunmmra Der Einfluss van abgeschreckten Leerstellen auf die Elastizit&tsmoduln van Aluminium wurdr untersucht. Zu diesem Zweck wurde eine Apparatur zur dynarcischen Messung van Moduliinderungen entwickelt. Es wurde gefunden, dass die Anwesenheit van Gitterleerstellen die ElastizitBtsmoduln verkleinert. Die Modul6nderungen wurden nach dem Abschrecken wiihrend der I%-holung bei Raumtemperatur untersucht. Die beobachtete AbhBngigkeit der Leerstellenkonzentration van der Zcit war analog zu derjenigen, die durrh Mewung des elektrisrhen Widerstands brst,irnrnt wird.


πŸ“œ SIMILAR VOLUMES


The quenching of vacancies in aluminum
✍ C. Panseri; P. Gatto; T. Federighi πŸ“‚ Article πŸ“… 1957 πŸ› Elsevier Science βš– 358 KB

Quite recently it was pointed out that by rapid quenching from high temperature, it is possible t,o quench in defects that will gradually disappear with subsequent annealing at, or below, room temperature. Such observations have been carried out by anelastic measurement on solid solution(1$ 2, and h

Vacancy concentrations in quenched alumi
✍ G. Thomas; R.H. Willens πŸ“‚ Article πŸ“… 1966 πŸ› Elsevier Science βš– 637 KB

attenuation processes become more important with increasing frequency, and at high frequencies the wave amplitudes in the crystalline region are too small to be measured with sufficient accuracy. The most favorable conditions for investigating the frequency response of the interface would be in syst

The effect of softeners on the elastic m
✍ Orin C. Hansen Jr.; Leon Marker; Orville J. Sweeting πŸ“‚ Article πŸ“… 1961 πŸ› John Wiley and Sons 🌐 English βš– 751 KB

## Abstract The dynamic elastic modulus of cellophanes has been measured by use of the resonant frequency of a 2 Γ— 60‐mm. strip of film in longitudinal vibration. The niodulus was computed from the resonant frequency length of specinieii, and the cross‐sectional area determined from its resonant fr