Identyfikatory
Warianty tytułu
Austempered Ductile Iron to Work in the Conditions of Dynamic Load
Języki publikacji
Abstrakty
Żeliwo ADI posiada wiele odmian. Tematem artykułu jest najbardziej popularna odmiana ADI - (Austempered Ductile Iron) hartowanie z przemianą izotermiczną. Dzięki zastosowaniu w.w. rodzaju obróbki cieplnej uzyskuje się żeliwo o wyjątkowo korzystnych właściwościach wytrzymałościowych i plastycznych. Istotnym elementem procesu otrzymywania żeliwa wysokojakościowego jest aby w strukturze występował ausferryt.
ADI makes an alternative to steel casting for constructors. High mechanical properties of ADI compare with parameters of quenched and tempered structural cast steel. A factor that is decisive for replacing steel casting with cast iron is elongation. For castings used in temperatures below 0oC a specified level of impact energy in negative temperature is needed. Impact energy in low temperature ausferritic cast iron was evaluated on samples without notch, with notch V and notch U. The research was carried out in temperatures +20oC, 0oC, -20oC, -40oC and -60oC. Two kinds of cast iron were evaluated: GJS-800-10 and GJS-1200-3 Grade. The value of temperature transition zone for high and low impact energy was evaluated. ADI cast iron was chosen, as one that can successfully replace the low-alloyed structural cast steel in low temperature conditions.
Czasopismo
Rocznik
Strony
115--118
Opis fizyczny
Bibliogr. 13 poz., rys., tab.
Twórcy
autor
- Odlewnie Polskie S.A. Al. Wyzwolenia 70, 27-200 Starachowice, Polska
autor
- AGH Akademia Górniczo-Hutnicza, im. Stanisława Staszica, Al. Mickiewicza 30, 30-059 Kraków, Polska
Bibliografia
- [1] PN-EN 1564 (2012), Founding - Ausferritic spheroidal graphite cast irons.
- [2] Guzik, E. (2010). Żeliwo ausferrytyczne i jego odmiany – struktura i wybrane właściwości, Archives of Foundry Engineering.
- [3] Keough, J.R. & Hayrynen, K.L. (2008). Austempering of Cast Irons – Developments Properties and Applications, 68th World Foundry Congress, pp. 23-27.
- [4] Guzik, E. (2001). Some selected problems concerning the processes of cast iron improvement. Polish Academy of Sciences, Branch Katowice, Foundry Commission, Monograph, No. 1M, pp. 128.
- [5] Seaton, P.B. & Xiao-Ming, L. (2002). An ADI Alternative for a Heavy Duty Truck Lower Control Arm, World Conference on ADI.
- [6] Roerig, K. (2002). ADI – ein Leichtbauwerkstoff mit hohem Potential, Giesserei-Rundschau 49,Heft 11/12.
- [7] Eric, O., Sidjanin, L., Miskowic, Z., Zes, S., Janowic, M.T. (2004). Microstructure and toughness of CuNiMo austempered ductile iron, Material Letters 01/2004; DOI:10.1016/j.matled. 2004.02.041.
- [8] Malia, J., Grech, M. (1997). Effect of silicon content on impact properties of austempered ductile iron, Materials Science and Technology, 04/1997.
- [9] Min-Su Kim, Do-Hoon Lee, Sang-Yun Shin and Byung-Joon Ye, Effects of Si Content on the Microstructure and Processing Window of Austempered Ductile Cast Iron.
- [10] Ghaderi, A.R., Nili Ahmadabadi, M., Ghasemi, H.M. (2003). Effect of graphite morphologies on the tribological behaviour of austempered cast iron, Wear 255, 410-416.
- [11] Della, M., Alaalam, M. & Grech, M. (1998). Effect of Austenitizing Conditions on the Impact Properties of an Alloyed Austempered Ductile Iron of Initially Matrix Structure, Journal of Materials Engineeringof and Perfomance, Volume 7 (20, April 1998 – 265).
- [12] Ratto, P.J.J., Ansaldi, A.F., Fierro, V.E., Aguera, F.R., Villar H.N. & Sikora, J.A. (2001). Low Temperature Impact Test in Austempered Ductile Iron and Other Spheroidal Graphite Cast Iron Structures, ISIJ International, Vol. 41, No. 4.
- [13] Ravishankar, K.S., Rajenda Udupa K. & Prasad Rao, P. (2008). Development of Austempered Ductile Iron for High Tensile and Fracture tuughness by Two Step Austempering Process, 68th WFC – Word Foundry Congress 7th – 10th February, 2008, pp. 35-40.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-711ca125-9829-44f6-a5f5-63927f9b9589