Effect complexes Ti-C-Sr and Ti-B-Sr on the structural parameters of the alloy Al-7Si
Keywords:
modifying complexes, alloy microstructure, alloy structure, methods of quantitative metallography, solid solutionAbstract
This study is focused on effect of Ti−C−Sr and Ti−B−Sr modifying complexes on as-cast Al−7Si alloy microstructure. To identify the presence of mutual poisoning effect between boron and strontium complexly added into the melt, and the possibility of using Ti−C−Sr complex as an alternative to Ti−B−Sr complex in order to modify hypoeutectic Al−7Si alloy structure. Object of research: unmodified and modified hypoeutectic Al−7Si alloy. Using different methods of quantitative metallography structural parameters such as secondary dendritic arms spacing of α-Al solid solution (SDAS), volume fraction of α-Al solid solution and eutectic silicon shape parameter (PF) were defined. Based on these results conclusions are made in accordance with the objectives of the study.
References
Куцова В. З. Структура, фазовый состав и свойства сплава АК7ч в исходном состоянии и с добавками стронция, титана и бора /
В. З. Куцова, А. С. Елагин // Вісник Дніпропетровського університету. – Дніпропетровськ, 2010. – С. 114−120.
H. Liao, G. Sun. Mutual poisoning effect between Sr and B in Al–Si casting alloys // ScriptaMaterialia. – 48 (2003). – 1035−1039.
T. Sagstad, E. Bhondus, European Patent № EP1134299 A1 (2001).
Куцова В. З. Влияние комплексного модифицирования, термической обработки в жидком состоянии на структуру и свойства сплава АК7ч /
В. З. Куцова, А. С. Елагин // Новини науки Придніпров’я. – Дніпропетровськ : ДВНЗ ПДАБА, 2012. − № 2. – С. 13−16.
A. K. PrasadaRao, K. Das, B. S. Murtyc, M. Chakraborty. Al–Ti–C–Sr master alloy – A melt inoculant for simultaneous grain refinement and modification of hypoeutectic Al–Si alloys // Journal of Alloys and Compounds. – 480 (2009). – Рp. 49−51.
Куцова В. З. Вплив модифікування сплаву АК7ч на параметри структури та механічні властивості / В. З. Куцова, А. С. Єлагін //
IX Міжнар. наук.-практ. конф.: тези доповідей – Дніпропетровськ, 2009. – С. 537.
Ганиев И. Н. Модифицирование силуминов стронцием / И. Н. Ганиев,
П. А. Пархутик, А. В. Вахобов, И. Ю. Куприянова. – Минск : Наука и техника, 1985. – 143 с.
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