Seven hours were required to produce an alloy with copper concentration of 0.25 wt% in depth of 0.5 mm in aluminum at 500 C. The diffusivities of this system are 4.8 x 10-4 m²/s and 9 x 101 m/s at 500...

None

Extracted text: Seven hours were required to produce an alloy with copper concentration of 0.25 wt% in depth of 0.5 mm in aluminum at 500 C. The diffusivities of this system are 4.8 x 10-4 m²/s and 9 x 101 m/s at 500 C and 530 C respectively. The time required to produce the same alloy at 530°C is: 3.18 h 3.73 h 1.75 h 0.63 h