Intermediate temperature embrittlement of copper alloys

Radiation Embrittlement Prediction Models and The Impact of Irradiation Temperature

A new methodology is developed for the prediction of RPV embrittlement that utilizes a combination of domain models and nonlinear estimators including neural networks and nearest neighbor regressions. The Power Reactor Embrittlement Database is used in this study. The results from newly developed nearest neighbor projective fuser indicate that the combined embrittlement predictor achieved about...

Soldering and brazing of copper and copper alloys

Wettability of Brazing Filler Metals on Copper and Copper Alloys

The possibility of alloying can not be avoided at the interface between molten brazing filler metal and base metal in brazing, so the wettability of brazing filler metal can not be easily explained theoretically. We used the original apparatus for wettability test and investigated the relation between the wettability of brazing filler metals of Ag-P-Cu and Ag-Cu-Zn-Cd systems on copper and the ...

Studies of Radiation Embrittlement of Model Alloys by Thermoelectric Measurements and Positron Annihilation Spectroscopy

One of the basic mechanisms of radiation embrittlement of steels and welds is due to matrix damage. Embrittlement results in a raise in the ductile-to-brittle transition temperature, which is normally used as indicator of the degradation status of the material. Other methods different than mechanical tests can be used to follow embrittlement like small punch test, non-destructive measurements o...

Electronic structure of copper-rich copper-gold alloys.

We present and discuss angle-resolved photoemission measurements from the (111) and (100) faces of CuAu single crystals containing 10 at. %%u oA u in th ebul k, togethe rwit hcomputation sof complex-energy bands and densities of states in the Cu90Aulo random alloy. Our calculations permit (.' a good understanding of the shifts and smearings in t e spectrum of Cu arising from the addition of Au ...