scholarly journals Mechanism and Kinetics of Stabilization Reaction of Polyacrylonitrile and Related Copolymers V. The Change in Birefringence of Acrylonitrile/Methacrylic Acid Copolymer Fibers by Heat Treatment under Fixed Length

1998 ◽  
Vol 30 (6) ◽  
pp. 474-478 ◽  
Author(s):  
Hideto Kakida ◽  
Kohji Tashiro
Keyword(s):  
Heat Treatment ◽  
Methacrylic Acid ◽  
Fixed Length ◽  
Acid Copolymer ◽  
Mechanism And Kinetics ◽  
Kinetics Of

Forming of the Structure and Functional Properties of the Precipitation-Strengthened CuNi2Si1 Alloy

2018 ◽  
Vol 275 ◽  
pp. 100-112
Author(s):  
Jarosław Konieczny ◽  
Zbigniew Rdzawski
Keyword(s):  
Electron Microscopy ◽  
Heat Treatment ◽  
Transmission Electron Microscopy ◽  
Cold Rolling ◽  
Functional Properties ◽  
Copper Alloy ◽  
Solution Heat Treatment ◽  
Transmission Electron ◽  
Mechanism And Kinetics ◽  
Kinetics Of

The work presents the results on the structure of CuNi2Si1 copper alloy. The alloy was treated in two variants: supersaturation - aging (variant I) and supersaturation - cold rolling - aging (Variant II).The structure of the CuNi2Si1 alloyed copper were analyzed by high resolution transmission electron microscopy (HRTEM). The TEM investigation showed in the Cu matrix after applying cold rolling after solution heat treatment, during aging at 600°C, causes the Ni2Si phase occurrence immediately after the begin of aging. Cold rolling (50% reduction) of the CuNi2Si1 alloy after supersaturation changes the mechanism and kinetics of precipitation and provides possibilities for production of broader sets of functional properties.

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