EFFICIENCY OF THE QUICKLY COOLED ALTI5 ALLOY UNDER THE CONDITIONS OF THE DIRECT THERMAL RHEOLITIA METHOD
Keywords:
globular structure, DTM, AK7ч alloy, modification, master alloy obtained by the rapid cooling method, AlTi5B, AlTi5B1Abstract
To obtain ingots for rheocasting process from AK7ч alloy using DTM technology, the efficiency of the AlTi5 master alloy obtained by the rapid cooling method is studied. It has been established that modifying the melt by AlTi5B1 master alloy as a rod and AlTi5 master alloy obtained by the rapid cooling method extends the temperature range for obtaining a globular structure. The efficiency of the AlTi5 master alloy is higher due to the more dispersed intermetallides that perform the function of the crystallization centers.
References
Bondarev, B. I., Napalkov, V. I., Tararichkin, V. I. (1979) Modifitcirovanie aliuminievih deformiruemih splavov [Modification of aluminum deformable alloys]. Moscow: Metallurgia, 224 p. [in Russian].
Mihalenkov, K. V. Obrabotka siluminov promishlennimi zernoizmelchaiuchimi ligaturami [Processing of silumin by industrial granulating ligatures]. URL: www.fhotm.kpi.ua/sworks/03/mykhalenkov_manuscript_2008_1.pdf. [in Russian].
Filippova, I. A. (2011) Issledovanie i razrabotka modifikatorov, zakalennykh iz zhidkogo sostoyaniya, i tekhnologii modifitsirovaniya doevtekticheskikh siluminov s tselyu polucheniya vysokokachestvennykh otlivok transportnogo mashinostroeniya [Research and development of modifiers hardened from liquid state, and technology for modifying pre-eutectic silumin with the aim of obtaining high-quality castings of transport engineering]. Extended abstract of candidate’s thesis. Moskow, P. 24. [in Russian].
Browne, D. J., Hussey M. J., Carr A. J. and Brabazon D. (2003) Direct thermal method: new process for development of globular alloy microstructure. International Journal of CastMetals Research, Vol. 16, No. 4, р.418–426 [in English].
Krivopalov, D. S. (2016) Primenenie mikrokristallicheskih modifikatorov pri podgotovke aliuminievih rasplavov k litiu s celiu povishenia kachestva litih izdeli [Application of microcrystalline modifiers in the preparation of aluminum melts for casting in order to improve the quality of cast products]. Extended abstract of candidate’s thesis. Nizhnii Novgorod, p. 20.
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Copyright (c) 2018 В. И. Белик, А. Г. Пригунова, В.М. Дука, А. И. Семенченко, Т. Г. Цир

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