Studies On Copper Alloys Containing Chromium (3rd Report). On the Age-hardening Process of Copper Alloys Containing Chromium

High-strength age hardening copper–titanium alloys: redivivus

In this review the decomposition of supersaturated Cu–Ti solid solutions and subsequent microstructural evolution are discussed in terms of modern views of precipitation from solid solution. This update is motivated by an anticipated emergence of these alloys as technologically significant high-strength, high-conductivity, precipitation hardened alloys over the next decade replacing conventiona...

Corrosion of chromium containing alloys in non-steady state environments containing oxygen, carbon, and chlorine

Internal attack of chromium containing alloys in mixed oxygen-chlorine environments occurs by the formation of pores which penetrate down grain boundaries of the alloys. No internal attack was detected in a binary Fe-20 %Cr alloy at 1200 K in environments containing 2500 ppm C12. The rate of internal attack of alloy 800H in such environments was increased by replacing the O2 in the gas by C02 ....

Structural studies on copper-containing plant oxidases.

Introduction Ascorbic acid oxidase (AAO) is ;I blue multi-copper oxidase that catalyses the four-electron reduction of dioxygen to water with concomitant one-electron oxidation of tlie reducing organic substrate [ 1 1. Copper-dependent A A O is found only in higher plants 12 I. The enzyme from Cucurbitu pep0 medullosa (green zucchini) is ;I dimer of 14OOOO-M,. containing eight copper ions of th...

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 ...

Inhibition Mechanisms of Organic Compounds on Copper and Copper Alloys