[Retracted] Comparison of Microstructure and Mechanical Properties of A356/SiC Metal Matrix Composites Produced by Two Different Melting Routes

Table 11

Improved toughness of A356/SiC MMC by electromagnetic stir casting process.

A356/SiC; MMC	Sample; number	Electromagnetic stir casting samples (ESCS)			Mechanical stir casting samples (MSCS)			Improved; toughness; (joule)
		Toughness; (joule)	Variation; (joule)	Average toughness; (joule)	Toughness; (joule)	Variation; (joule)	Average toughness; (joule)
100% A356 + 0% SiC	1	6.5	0.5	6.33	6	0.5	6.16	2.68%
	2	6.5			6.5
	3	6			6
95% A356 + 5% SiC	1	7.5	1	8	7.5	1.5	7.33	8.37%
	2	8			8
	3	8.5			6.5
90% A356 + 10% SiC	1	11	3.5	11.5	7	5	10.16	11.65%
	2	10			12
	3	13.5			11.5
85% A356 + 15% SiC	1	15	2.5	13.5	13	8	12.33	8.66%
	2	13			8
	3	12.5			16