scholarly journals Influence of degree of deformation in rolling on anneal hardening effect of a cast copper alloy

2003 ◽  
Vol 26 (6) ◽  
pp. 601-604 ◽  
Author(s):  
Svetlana Nestorovic ◽  
Desimir Markovic ◽  
Ljubica Ivanic
Keyword(s):  
Copper Alloy ◽  
Degree Of Deformation ◽  
Hardening Effect ◽  
Anneal Hardening

scholarly journals Influence of time of annealing on anneal hardening effect of a cast CuZn alloy

2003 ◽  
Vol 39 (3-4) ◽  
pp. 489-497 ◽  
Author(s):  
Svetlana Nestorovic ◽  
Lj. Ivanic ◽  
Desimir Markovic
Keyword(s):  
Copper Alloy ◽  
Cold Work ◽  
Pure Copper ◽  
Lattice Parameter ◽  
Recrystallization Temperature ◽  
X Ray ◽  
Hardening Effect ◽  
Anneal Hardening ◽  
Cold Rolled ◽  
Cuzn Alloy

Investigated cast copper alloy containing 8at%Zn of a solute. For comparison parallel specimens made from cast pure copper. Copper and copper alloy were subjected to cold rolling with different a final reduction of 30,50 and 70%. The cold rolled copper and copper alloy samples were isochronally and isothermally annealed up to recrystallization temperature. After that the values of hardness, strength and electrical conductivity were measured and X-ray analysis was performed. These investigations show that anneal hardening effect at alloys was attained under recrystallization temperature in the temperature range of 180-3000C, followed with an increase in hardness. The amount of strengthening increase with increasing degree of prior cold work. Also the X-ray analysis show the change of lattice parameter during annealing when anneal hardening effect was attained.

scholarly journals Anneal hardening effect in sintered copper alloys

2002 ◽  
Vol 34 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Svetlana Nestorovic ◽  
Boran Milicevic ◽  
Desimir Markovic
Keyword(s):  
Electrical Conductivity ◽  
Cold Rolling ◽  
Copper Alloys ◽  
Recrystallization Temperature ◽  
Temperature Range ◽  
Hardening Effect ◽  
Sintered Copper ◽  
Anneal Hardening ◽  
Cold Rolled

Samples of copper and copper alloys CuNi and CuNiAl were prepared by a powder metallurgical method and were then subjected to cold rolling with different degrees of deformation. Copper and copper alloys in the cold-rolled state were isochronally annealed up to the recrystallization temperature during which hardness and electrical conductivity were measured. This investigation shows that the anneal hardening effect occurs in a temperature range of 450 - 650 K, followed with an increase in hardness of alloys.

Improvements in properties of sintered and cast Cu–Ag alloys by anneal hardening effect

2011 ◽  
Vol 54 (1) ◽  
pp. 36-39 ◽  
Author(s):  
S. Nestorovic ◽  
I. Rangelov ◽  
D. Markovic
Keyword(s):  
Hardening Effect ◽  
Anneal Hardening

scholarly journals Influence of deformation degree at cold-rolling on the anneal hardening effect in sintered copper-based alloys

2004 ◽  
Vol 40 (1) ◽  
pp. 101-109 ◽  
Author(s):  
Svetlana Nestorovic
Keyword(s):  
Cold Rolling ◽  
Annealing Temperature ◽  
Pure Copper ◽  
Deformation Degree ◽  
Temperature Range ◽  
Hardening Effect ◽  
Sintered Copper ◽  
Anneal Hardening

Samples of copper-based alloys, Cu-4at%Zn, Cu-8at%Zn and Cu-5at%Ni-2at%Sn and pure copper have been prepared by a powder metallurgical method. The samples were subjected to cold rolling to 30, 50 and 70% in reduction, followed by annealing up to the recrystallization temperatures. Anneal hardening effect has been observed with the alloys in an annealing temperature range of 180-4000C, the hardness being increased with the amount of reduction at the prior cold - rolling.

Determining whiskering properties of tin-copper alloy solder-dipped platings

2010 ◽  
Vol 54 (3-4) ◽  
pp. 107
Author(s):  
Barbara Horváth ◽  
Balázs Illés ◽  
Tadashi Shinohara ◽  
Gábor Harsányi
Keyword(s):  
Copper Alloy ◽  
Alloy Solder
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