Ultrasonic assessment of shape index and number of graphite precipitations in spheroidal cast iron manufactured in the foundry METAL-ODLEW Sp.J.

• Autorzy: Orłowicz W. , Tupaj M. , Mróz M. , Guzik E. , Nykiel J. , Zając A. , Piotrowski B.
• Języki publikacji: EN

Abstrakty

EN

This study presents the results of testing the shape index, number of graphite precipitations, and longitudinal ultrasound wave velocity with wedge castings used for production of samples for the assessment of mechanical characteristics. To differentiate values of the parameters, the castings were made at the same time as the production castings. The data obtained were used to establish the relationship between the ultrasonic wave velocity cL, the shape index SS and the number of graphite precipitation NA.

Słowa kluczowe

EN

spheroidal cast iron; graphite shape index; average number; graphite precipitations; ultrasonic wave velocity

PL

żeliwo sferoidalne; indeks kształtu; prędkość fali ultradźwiękowej

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 4
• Strony: 179--182
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Orłowicz W.

autor

Tupaj M.

autor

Mróz M.

autor

Guzik E.

autor

Nykiel J.

autor

Zając A.

autor

Piotrowski B.

• Department of Casting and Welding Technical University of Rzeszow, 35-959 Rzeszów, ul. W. Pola 2,

Bibliografia

• [1] Orłowicz W.: Zastosowanie ultradźwięków w odlewnictwie. Solidification of Metals and Alloys, PAN Katowice, 2000, Vol. 2., No 45.
• [2] Fallon J.: Practice and problems during ultrasonic examination of defects in iron castings. The Foundryman. April, 1991, 140-144.
• [3] Li H., Griffin R. D., Bates L. E.: Gray iron property measurements using ultrasonic techniques. AFS Transactions. Paper 05-125(05), 2005, 1-11.
• [4] Fuller A. G.: Evaluation of the graphite form in pearlitic ductile iron by ultrasonic and sonic testing and the effect of graphite form on mechanical properties. AFS Transac-tions, vol. 85, No 102, 1977, 509-526.
• [5] Orłowicz W., Tupaj M., Mróz M., Guzik E., Gierut E., Pilut W., Zimowski A.: Defining the relation between tensile strength and ultrasonic wave velocity in spheroidal cast iron manufactured in the foundry JAFAR S.A. Archives of Foundry Engineering, Vol. 9, No 1, 2009, 129-132.
• [6] Guo X.: A statistical study on the relationship between tensile strength and ultrasonic velocity of cast iron. International Journal of Cast Metals Research, 2003,Vol 16, 221-226.
• [7] Voronkova L. V.: Ultrasonic testing possibilities of cast iron ingots. ECNDT Th.2.2.3, 2006, 1-13.
• [8] Lener S. Y. S.: Evaluation of structure and properties of gray iron PM castings using NDT technique, AFS Transactions, 103, 1995, 151-155.