Evaluation of Impact Strength and Microstructure as Quality Criteria for Selected Materials

• Autorzy: Maj M. , Pietrzak K. , Lasota P.
• Języki publikacji: EN

Abstrakty

EN

The article presents the results of analysis of the chemical composition, hardness, microstructure and toughness of selected structural materials. The focus is on the results of impact tests carried out on the 40H steel quenched and tempered at three different temperatures, on grey cast iron used in industrial practice (cast material for brake drums) and on ADI, all of them being considered representatives of the group of materials commonly used in the production of structural elements and finished products, including items for use in the automotive industry. The impact tests were performed at a reduced temperature (-20°C), at room temperature (20°C) and at elevated temperature (150°C), comparing the results obtained with the microstructure of materials tested. It has been shown that in the case of steel, the smallest changes in microstructure cause changes in toughness, while the effect of tempering temperature is in this case of secondary importance. It was also proved that under the conditions of ambient temperature and reduced temperature, better results were obtained for ADI. At elevated temperature, better results were obtained for grey iron castings.

Słowa kluczowe

EN

steel; cast iron; hardness; microstructure; impact strength

PL

stal; żeliwo; twardość; mikrostruktura; wytrzymałość

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 1 spec.
• Strony: 199--204
• Opis fizyczny: Bibliogr. 12 poz., fot., rys., tab., wykr.

Twórcy

autor

Maj M.

• Faculty of Foundry Engineering, AGH, University of Science and Technology, ul. Reymonta 23, 30-059, Cracow, Poland

autor

Pietrzak K.

• Motor Transport Institute, ul. Jagiellońska 80, 03-301 Warsaw, Poland

autor

Lasota P.

• Motor Transport Institute, ul. Jagiellońska 80, 03-301 Warsaw, Poland

Bibliografia

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• [3] Harada S.; Akiniwa Y., Ueda T. & Yano M. (1990). Low-Cycle Fatigue of a Pearlitic Ductile Cast Iron (Retroactive Coverage). Fatigue 90. Honolulu, Hawaii; USA; (July 15, 1990).
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• [8] Maj M. (2012). Fatigue life of selected casting alloys. [Trwałość zmęczeniowa wybranych stopów odlewniczych]. Katowice-Gliwice: Archives of Foundry Engineering.
• [9] Soiński M. S., Muzyka R. (2006). Impact Strength of Pearlite–Ferrtic Nodular Cast Iron. Archives of Foundry. 6(19), PAN – Katowice PL, ISSN 1642-5308.
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• [11] Maj M. (2013). Fatigue Life Assessment of Selected Engineering Materials Based on Modified Low Cycle Fatigue Test. Archives of Foundry Engineering. 13/1, 89-94.
• [12] Maj M. (2009). A Method for determination of complete mechanical characteristics of heterogeneous-structure materials. Archives of Foundry Engineering, 9/3, 83-86.