Uniformity of the Dendritic Microstructure in Large-Sized Single-Crystal Superalloy Blades

被引：7

作者：

Zhang, Chao ^{[1
]}

Huang, Taiwen ^{[1
]}

Zhang, Zhicheng ^{[1
]}

Zhang, Jiachen ^{[1
]}

Liu, Dingyuan ^{[1
]}

Zhang, Jun ^{[1
]}

Liu, Lin ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2023年 / 54卷 / 07期

基金：

中国国家自然科学基金;

关键词：

DIRECTIONAL-SOLIDIFICATION; GROWTH; ARRAY;

D O I：

10.1007/s11661-023-06963-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The distribution of the dendrite arrays and the primary dendrite arm spacing (PDAS) in large-sized single-crystal superalloy blade was investigated by Voronoi tessellation. The dendrite arrays were hexagonal at the airfoil center and random at the trailing edge. The PDAS was gradually increased from the leading edge (about 370 mu m) to the trailing edge (about 500 mu m). With the solidification distance increasing, the PDAS in large-sized blade was decreased (about 380 mu m) at the middle blade.

引用

页码：2507 / 2511

页数：5

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