Strips of an alloy of 75 wt. per cent gold and 25 wt. per cent silver were cold worked by rolliitg. The stored energy was released by dissolution of the samples in liquid tin and found calorimetrically by comparison with annealed samples. The total energy expended in rolling was determined from a s
The effect of composition on the stored energy of cold work and the deformation behavior of gold-silver alloys
β Scribed by P Greenfield; M.B Bever
- Publisher
- Elsevier Science
- Year
- 1957
- Weight
- 716 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0001-6160
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β¦ Synopsis
The energy stored in chips formed by drilling at room temperature and at -195Β°C has been determined for five gold-silver alloys in the composition range from 35 to 98 atomic per cent Au. The stored energy varies with composition by a factor of nearly 5 at room temperature and by nearly 3 at -195Β°C. The stored energy also varies with the temperature of deformation and, after working at -195'C, is approximately two to five times as large as after working at room temperature. The energy expended in the deformation is larger at the lower temperature, and increases with increasing concentration of solute. Only about 1 y0 of this energy is stored. L'EFFET DE L.4 COMPOSITION SUR L'ENERGIE EMMAGASINEE LORS DE L'ECROUISSAGE ET LE COMPORTEMENT A LA DEFORMATION DES ALLIAGES OR-ARGENT L'energie emmagasinee dans des copeaux recueillis per forage It la temperature ordinaire et b -195% a Qte determinee pour cinq alliages or-argent de la gamme 3%98% at. de Au. Cette Qnergie varie avec la composition: du simple au quintuple a la temperature ordinaire, au triple a -195Β°C. Elle varie egalement avec la temperature de deformation et est approximativement de deux it cinq fois plus grande it -195Β°C qu'it la temperature ordinaire. L'energie d&pens&e lors de la deformation est plus importante a la temperature la plus basse et elle s'accroit avec la concentration en solute: un pourcent seulement de cette bnergie est retenue. DER EINFLUSS DER ZUSAMMENSETZUNG AUF DIE BE1 KALTBEARBEITUNG GESPEICHERTE ENERGIE UND DAS VERFORMUNGSVERHALTEN VON GOLD-SILBER-LEGIERUNGEN An fiinf Gold-Silber-Legierungen im Konzentrationsgebiet zwischen 35 und 98 At. -y0 Au wurde die in bei Raumtemperatur bsw. bei -195Β°C hergestellten Bohrspanen gespeicherte Energie bestimmt. Die gespeicherte Energie variiert mit der Zusammensetzung und zwar bei Raumtemperatur urn annahernd einen Faktor 5, bei -195Β°C urn etwa einen Faktor 3. Sie iindert sich such mit der Verformungstemperatur und ist nach Kaltbearbeitung bei -195Β°C niiherungsweise 2 bis 5 ma1 so gross als nach Bearbeitung bei Raumtemperatur. Die gesamte Verformungsarbeit ist bei der tieferen Temperatur grosser und nimmt mit wachsender Konzentration der Zulegierung zu. Nur etwa 1 y0 dieser Arbeit wird gespeichert. Energy Commission under Contract AT(30-l)-1002.
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