The Corrosion Behaviour of WC-Co-Ru Alloys in Aggressive Chloride Media

Table 4

Peak positions found on the surface of WC-Co-Ru/VC alloys after exposure in 1 M sodium chloride solution.

Sample (wt% Ru)	Raman peaks of samples after exposure to sodium chloride
	Peak 1	Peak 2	Peak 3	Peak 4	Peak 5	Peak 6	Peak 7
0.0				687	516	456	261
0.4				628	519	456	128
1.5				627	525	456	281
1.0	1451	1041	845	663		406	123
2.0	1362		886				184
3.0	1449	1002	853	661		406	118