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Metal Casting Technologies : September 2007
76 www.metals.rala.com.au TECHNICAL FEATURE 4. DISCUSSION AND CONCLUSIONS This paper deals the development of expert system to represent the phase diagrams graphically and reveal the composition and microstructures visually at different points. The very purpose behind computer application is to elicit a vivid picture of structural changes for a given temperature and carbon content and to overcome the requirement of considerable amount of man hours and a variety of tools with different operating procedures. This expert system contains a database structure for information, provides a tool for calculation, graphical representation and for plotting the results. The understanding of phase diagrams is important to engineers related to design of castings, heat treatment and quality control procedures. Phase diagrams provide valuable information about melting, casting, crystallization and other phenomena. This expert system can be used to represent any phase diagram and reveal their composition, provided it required modification in a1 and a2 values. This system provides way for composition control in foundries and thereby gives better accuracy and properties of cast components. ● Figure 7. Flowchart for the system process Reference (i) Parker.R.H, An Introduction to Chemical Metallurgy, Second Edition, Pergamon Press, New York, 1978. (ii) Kernighan B.W., Ritchie DOM., C Programming Language, Prentice Hall of India Pvt. Ltd., 2000. (iii) Herbert Schlidt, C -- The Complete Reference, McGraw Hill Publications, 2000. (iv) Donald.R.Askeland, The Science and Engineering of Materials, Brooks Cole Engineering, U.S.A, 1984 (v) Morris Mano.M, Computer System Architecture, Prentice Hall of India, New Delhi, 2001. (vi) Sidney H.Avner, Introduction to Physical Metallurgy, McGraw Hill Publications, 1997. (vii) Heine R.W., Loper.C.R, Rosenthal.P.C, Principles of Metal Casting, Tata McGraw Hill Publications, New Delhi, 1995. (viii) Howard F. Taylor, Merton C Flemings & John Wulff, "Foundry Engineering", John Wiley and Sons Ltd. 2003. (ix) Byron.S.Gottfried, Programming with C, Tata McGraw -- Hill Publishing Company Ltd., 2002 (x) Robert Lafore, Turbo C, Galgotia Publications Pvt Ltd., 2000. PRODUCTS: ■ Silicon Nitride Bonded SiC (Refrax 20) ■ Reaction Bonded SiC (Norfrax RB) ■ Sintered SiC (Hexoloy) ■ Refractory Monolithics (Norton) ■ Alumina Wear Resistant Technology ■ ZAC/Corguard (AZS) (SEPR) Saint-Gobain has over 340 years of material technology know-how and innovation World class brands of Norton, Carborundum, Corhart, SEPR, all part of Saint-Gobain Wear resistant products to handle the harshest environments with a lower life-cycle cost than traditional materials 326 Settlement Road, Thomastown, VIC, 3074 Australia Tel : +61 3 9463 0050 Fax: +61 3 9465 6015 Email: email@example.com Websites: www.refractories.saint-gobain.com www.foundry.saint-gobain.com www.wrt.saint-gobain.com INDUSTRIES SUPPLIED INCLUDE: ■ Foundries: Ferrous & Non-Ferrous ■ Die-Casting ■ Power Generation ■ Mining & Mineral Processing