Optimization of milling speed and time in mechanical alloying of ferritic ODS steel through taguchi technique | International Journal for Simulation and Multidisciplinary Design Optimization (IJSMDO)

Advances in Modeling and Optimization of Manufacturing Processes

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Table 5

ANOVA analysis for crystallite size.

Milling parameters		Crystallite size

Factors	DF	SS	MS	F-Value	P-Value	PC%
Milling Time (hrs)	2	240.89	120.444	12.32	0.020	26.699
Milling Speed (rpm)	2	622.22	311.111	31.82	0.003	68.965
Error	2	39.11	19.555	–	–	4.334
Total	6	902.22	–	–	–	100

Note: PC, Percentage of contribution; P, Probability of significance at 5%; DF, Degree of freedom; MS, mean squared deviation; F, Fisher's F ratio; SS, sum of squared deviation.

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