Numerical simulation of temperature field and microstructure during directional solidification hollow blades by LMC

Ning Tang; Hang Zhang; Qingyan Xu; Baicheng Liu

Numerical simulation of temperature field and microstructure during directional solidification hollow blades by LMC

Ning Tang
, Hang Zhang
, Qingyan Xu
, Baicheng Liu

Tsinghua University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The dynamically changing and combining boundary condition in LMC and the microstructure evolution were simulated by a self-developed software Teccast. Macro-micro structure simulation of blade was conducted at different directional solidification process. The results reveal that the narrower mushy zone can be obtained by LMC compared to the mushy zone in HRS, especially in the thick position. Because of larger temperature gradient and less concave mushy zone by LMC, stray grain can be avoided at higher withdrawal rate. To improve the product efficiency of the hollow SX blade, higher withdrawal rate can be adopted within the range limited by thermal stress.

Original language	English
Pages (from-to)	561-565
Number of pages	5
Journal	Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys
Volume	34
Issue number	6
State	Published - Jun 2014
Externally published	Yes

Keywords

Directional solidification
Hollow SX blade
LMC
Microstructure
Numerical simulation

Cite this

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title = "Numerical simulation of temperature field and microstructure during directional solidification hollow blades by LMC",

abstract = "The dynamically changing and combining boundary condition in LMC and the microstructure evolution were simulated by a self-developed software Teccast. Macro-micro structure simulation of blade was conducted at different directional solidification process. The results reveal that the narrower mushy zone can be obtained by LMC compared to the mushy zone in HRS, especially in the thick position. Because of larger temperature gradient and less concave mushy zone by LMC, stray grain can be avoided at higher withdrawal rate. To improve the product efficiency of the hollow SX blade, higher withdrawal rate can be adopted within the range limited by thermal stress.",

keywords = "Directional solidification, Hollow SX blade, LMC, Microstructure, Numerical simulation",

author = "Ning Tang and Hang Zhang and Qingyan Xu and Baicheng Liu",

year = "2014",

month = jun,

language = "英语",

volume = "34",

pages = "561--565",

journal = "Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys",

issn = "1001-2249",

publisher = "Journal Office of Special Casting and Nonferrous Alloys",

number = "6",

}

TY - JOUR

T1 - Numerical simulation of temperature field and microstructure during directional solidification hollow blades by LMC

AU - Tang, Ning

AU - Zhang, Hang

AU - Xu, Qingyan

AU - Liu, Baicheng

PY - 2014/6

Y1 - 2014/6

N2 - The dynamically changing and combining boundary condition in LMC and the microstructure evolution were simulated by a self-developed software Teccast. Macro-micro structure simulation of blade was conducted at different directional solidification process. The results reveal that the narrower mushy zone can be obtained by LMC compared to the mushy zone in HRS, especially in the thick position. Because of larger temperature gradient and less concave mushy zone by LMC, stray grain can be avoided at higher withdrawal rate. To improve the product efficiency of the hollow SX blade, higher withdrawal rate can be adopted within the range limited by thermal stress.

AB - The dynamically changing and combining boundary condition in LMC and the microstructure evolution were simulated by a self-developed software Teccast. Macro-micro structure simulation of blade was conducted at different directional solidification process. The results reveal that the narrower mushy zone can be obtained by LMC compared to the mushy zone in HRS, especially in the thick position. Because of larger temperature gradient and less concave mushy zone by LMC, stray grain can be avoided at higher withdrawal rate. To improve the product efficiency of the hollow SX blade, higher withdrawal rate can be adopted within the range limited by thermal stress.

KW - Directional solidification

KW - Hollow SX blade

KW - LMC

KW - Microstructure

KW - Numerical simulation

UR - https://www.scopus.com/pages/publications/84904468556

M3 - 文章

AN - SCOPUS:84904468556

SN - 1001-2249

VL - 34

SP - 561

EP - 565

JO - Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys

JF - Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys

IS - 6

ER -

Numerical simulation of temperature field and microstructure during directional solidification hollow blades by LMC

Abstract

Keywords

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