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

Table 6

Raman peak positions (cm⁻¹) found on the surface of WC-Co-Ru/VC alloys after exposure in synthetic mine water solution.

Sample (wt% Ru)	Raman peaks of samples after exposure to synthetic mine water
	Peak 1	Peak 2	Peak 3	Peak 4	Peak 5	Peak 6
0.0	1582	1232	—	598	527	128
0.4	1596	1337	—	581	527	139
1.0	1613	1374	857	619	520	122
1.5	1586	1436	867	598	530	152
2.0	1572	—	—	656	510	186
3.0	1596	1014	898	625	525	144
0.4VC	1569	1187	—	666	523	190
Average	1588±25	1263±173	874±24	620±46	523±13	152±38