id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
azojete-349	Garba, D. K. ; Muhammad, M. J. ; Umar, U. S. ; Ozoekwe, N. C. A. 	Investigation of Chemical Composition of a Steam Turbine Shaft (A Case of Kaduna Refinery)	2020	6	.pdf	application/pdf	2477	132	50	Comparing the chemical compositions of the ASTM A668 steam turbine shaft requirement under class D standard of the chemical compositions standards of steam turbine shaft, original turbine and locally fabricated steam turbine shaft as shown in Figure 3, Phosphorus contents of ASTM standard and locally fabricated shaft are the same which shows its effectiveness as a substitute to the OEM shaft. The analysis also showed that carbon, manganese, chromium and phosphorus content of the original steam turbine shaft was higher than that of the untreated locally fabricated shaft with values; (0.48C, 0.06S, 0.12Ca, 0.99Cr, 0.36Si, 0.71Mn, 0.07P, 0.12Ni, 0.15Cu and 0.39Mo) and the locally fabricated steam turbine shaft (0.38C, 0.07S, 0.038Ca, 0.89Cr, 0.83Si, 0.63Mn, 0.04P, 0.04Ni, 0.16Cu and 0.20Mo) as shown in Table 1. Comparing the chemical compositions of the original and locally fabricated steam turbine shaft as shown in Figure 2, nickel noted to induce strength, ductility and toughness in turbine shafts is lower in the locally fabricated shaft.	cache/azojete-349.pdf	txt/azojete-349.txt