[Retracted] Influence of Sulfur and Additives on Wear of Exhaust Valve Seat of Cylinder Head

Table 8

EDS analysis results of exhaust valve contact surface.

0#			Element	Atomic ratio
			C	60.38
			O	22.55
			Na	0.77
			Al	0.80
			Si	0.24
			P	0.07
			S	0.11
			Cl	0.24
			K	0.14
			Ca	0.46
			Ti	0.41
			Cr	2.64
			Mn	0.11
			Fe	6.43
			Ni	4.65
			Summation	100.00
0#+			Element	Atomic ratio
			C	41.91
			O	55.79
			S	0.61
			Cl	0.39
			K	0.97
			Ca	0.34
			Summation	100.00
−10#			Element	Atomic ratio
			C	44.85
			O	52.20
			Na	0.53
			Si	1.89
			S	0.23
			Cl	0.13
			Ca	0.16
			Summation	100.00
−10#+			Element	Atomic ratio
			C	61.27
			O	30.95
			Na	1.62
			P	0.20
			S	2.00
			Cl	0.32
			K	3.14
			Ca	0.49
			Summation	100.00