The carbon layers on implanted steel surface have been studied by means of Auger spectra. Itis shown that the thickness of the carbon layer is proportional to t
The major phases in the Cu-rich alloys containing Co,Cr and Si are α-Cu(a solid solutionof Co,Cr and Si in Cu),χ-phase(Co<sub>5</sub>Cr<sub>3</sub>Si<sub>2</sub>