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Materials (Basel). 2019 Jun 1;12(11). pii: E1781. doi: 10.3390/ma12111781.

Using a Three-Dimensional Reduction Method in the High-Efficiency Grain Selector and Corresponding Grain Selection Mechanism.

Author information

1
Foundry Institute, RWTH Aachen University, 52072 Aachen, Germany. zhudb8@gmail.com.
2
Foundry Institute, RWTH Aachen University, 52072 Aachen, Germany. f.wang@gi.rwth-aachen.de.
3
State Key Laboratory for Manufacturing System Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China. f.wang@gi.rwth-aachen.de.
4
Foundry Institute, RWTH Aachen University, 52072 Aachen, Germany. zspdeutsch66106@gmail.com.
5
Foundry Institute, RWTH Aachen University, 52072 Aachen, Germany. t.wittenzellner@gi.rwth-aachen.de.
6
Foundry Institute, RWTH Aachen University, 52072 Aachen, Germany. j.friess@gi.rwth-aachen.de.
7
Foundry Institute, RWTH Aachen University, 52072 Aachen, Germany. d.ma@gi.rwth-aachen.de.
8
Foundry Institute, RWTH Aachen University, 52072 Aachen, Germany. sekretariat@gi.rwth-aachen.de.

Abstract

In the development of a high-efficiency grain selector, the spiral selectors are widely used in Ni-based single crystal (SX) superalloys casting to produce single crystal turbine blades. For the complex three-dimensional structure of the spiral, a 2D grain selector was designed to investigate in this paper. As a result, the parameters of two-dimensional grain selection bond and the corresponding grain selection mechanism were established, and the three-dimensional grain selection bond was designed again by means of two-dimensional coupling optimization parameters.

KEYWORDS:

2D grain selector; Ni-based single crystal superalloys; grain selector; reduction the dimensionality

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