Accurate electrical resistance measurement of the crystallization kinetics of amorphous alloys

2001 ◽  
Vol 44 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Yaping Wang ◽  
Ke Lu
Keyword(s):  
Crystallization Kinetics ◽  
Electrical Resistance ◽  
Amorphous Alloys ◽  
Resistance Measurement ◽  
Electrical Resistance Measurement ◽  
Kinetics Of

DECOMPOSITION KINETICS OF Cu-10aT%Co ALLOY STUDIED BY IN-SITU ELECTRICAL RESISTANCE MEASUREMENT

2002 ◽  
Vol 16 (01n02) ◽  
pp. 137-143
Author(s):  
P. PENG ◽  
Z. H. JIN ◽  
K. LU ◽  
Z. Q. HU
Keyword(s):  
Electrical Resistance ◽  
Measurement Method ◽  
Resistance Measurement ◽  
Aged Alloy ◽  
Electrical Resistance Measurement ◽  
X Ray Diffraction ◽  
Decomposition Processes ◽  
Rapidly Solidified ◽  
Kinetics Of

The spinodal decomposition processes in the rapidly solidified Cu-10aT%Co alloy aged at several temperatures have been investigated using an in-situ electrical resistance measurement method combining a slowly scanning x-ray diffraction technique. Based on the Cahn-Hilliard theory, the time-dependences of amplification factor of the concentration modulation R(β) at different aging temperatures were calculated, and the Co atomic concentration of Co-rich region and Co-depleted region in the aged alloy were also deduced. The results showed that the evolution of composition modulation in microstructure in Cu-10aT%Co alloy can be monitored and characterized by an in-situ electrical resistance measurement method if only the degree of phase decomposition at some aging temperature and aging time had been previously deteced.

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