Experience of Using Silica-Free Alumox Binder in Technology for Preparing Composite Ceramic Investment Casting Molds for Superalloy Directional Solidification

被引：7
|
作者：
Baranova, T. F. [1 ]
Valiakhmetov, S. A. [1 ]
Gogolev, G. V. [1 ]
Shunkina, N. I. [1 ]
Varfolomeev, M. S. [2 ]
Shcherbakova, G. I. [2 ]
Vartanyan, G. A. [3 ]
机构：
[1] AO NPTs Gas Turbine Construct Salyut, Moscow, Russia
[2] GNTs RF AO GNIIKhTEOS, Moscow, Russia
[3] DI Mendeleev Russian Chem Technol Univ, FGBOU VPO, Moscow, Russia
来源：
REFRACTORIES AND INDUSTRIAL CERAMICS | 2016年 / 57卷 / 04期
关键词：
silica-free binder ALUMOX; combined ceramic mold; superalloys; directional solidification;
D O I：
10.1007/s11148-016-9981-y
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Silica-free binder ALUMOX is tested under conditions of the AO NPTs Gas Turbine Construction Salyut casting shop conditions. Amethod is developed for preparing composite ceramic molds for investment casting of critical superalloy components by directional solidification. Use of these molds makes it possible to prepare castings by high-gradient directional solidification answering component drawing specifications and technical conditions. The protective layer of the composite mold based on ALUMOX binder significantly reduces chemical interaction of the mold working layer with components of superalloy ZhS26-VI during pouring and cooling compared with the degree of interaction of a standard mold based on AeTS-40 binder.
引用
收藏
页码：335 / 341
页数：7
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