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
The effect of quenched-in vacancies on the elastic modulus of aluminum
β Scribed by R.G Folweiler; F.R Brotzen
- Publisher
- Elsevier Science
- Year
- 1959
- Weight
- 536 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0001-6160
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β¦ 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.
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