Following the links below, you can find images of cross-sections of different Cu-As alloys. In the upper right corner, you have the indication for the percentage of Arsenic, followed by the indication of annealing time (in min.), the amount of deformation (in %), and the magnification (the bars with the indication of size are in a separate image). Just ignore ‘quer’ or ‘copy’ in the filename. The samples were first deformed (and yes, it is possible to deform CuAs-alloys up to 98% without cracking!), and then annealed. All samples are cross-sections.
To give you an example: Image ‘1As_20min_40def_quer_100x_3 copy’ means that a sample of CuAs-alloy with 1 wt.% As was 40% deformed and afterwards annealed for 20min. The magnification is 100x.
Here is the overview of samples and treatment:
- Chemical composition: 1, 2, 3, 4, 5, 10 wt.% As
- deformation (cold rolling): 0, 20, 40, 60, 80, 98%
- annealing time: 0, 20, 40, 80 min at 600°C in reduced atmosphere
- After annealing, the samples were quenched in water.
Images (follow the links):
- Images of CuAs-10
- Images of CuAs-5
- Images of CuAs-4
- Images of CuAs-3
- Images of CuAs-2
- Images of CuAs-1
- Images of 98% deformation
- bars for different magnifications
- hardness measurements samples
…be patient with the scratches: The alloys arereally soft after annealing and it wasn’t a pleasant experience to polish these samples!