Modeling of TiAl Alloy Grating by Investment Casting

The investment casting of TiAl alloys has become the most promising cost-effective technique for manufacturing TiAl components. This study aimed to investigate a series of problems associated with the investment casting of TiAl alloys. The mold filling and solidification of this casting model were n...

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Main Authors: Yi Jia, Shulong Xiao, Jing Tian, Lijuan Xu, Yuyong Chen
Format: Article
Language:English
Published: MDPI AG 2015-12-01
Series:Metals
Subjects:
Online Access:http://www.mdpi.com/2075-4701/5/4/2328
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author Yi Jia
Shulong Xiao
Jing Tian
Lijuan Xu
Yuyong Chen
author_facet Yi Jia
Shulong Xiao
Jing Tian
Lijuan Xu
Yuyong Chen
author_sort Yi Jia
collection DOAJ
description The investment casting of TiAl alloys has become the most promising cost-effective technique for manufacturing TiAl components. This study aimed to investigate a series of problems associated with the investment casting of TiAl alloys. The mold filling and solidification of this casting model were numerically simulated using ProCAST. Shrinkage porosity was quantitatively predicted by a built-in feeding criterion. The results obtained from the numerical simulations were compared with experiments, which were carried out on Vacuum Skull Furnace using an investment block mold. The investment casting of TiAl grating was conducted for verifying the correctness and feasibility of the proposed method. The tensile test results indicated that, at room temperature, the tensile strength and elongation were approximately 675 MPa and 1.7%, respectively. The microstructure and mechanical property of the investment cast TiAl alloy were discussed.
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spelling doaj.art-cc7fcffa265d4f4987c885bf05a700ea2022-12-22T03:19:22ZengMDPI AGMetals2075-47012015-12-01542328233910.3390/met5042328met5042328Modeling of TiAl Alloy Grating by Investment CastingYi Jia0Shulong Xiao1Jing Tian2Lijuan Xu3Yuyong Chen4National Key Laboratory of Science and Technology on Precision Heat Processing of Metals, Harbin Institute of Technology, Harbin 150001, ChinaNational Key Laboratory of Science and Technology on Precision Heat Processing of Metals, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaNational Key Laboratory of Science and Technology on Precision Heat Processing of Metals, Harbin Institute of Technology, Harbin 150001, ChinaThe investment casting of TiAl alloys has become the most promising cost-effective technique for manufacturing TiAl components. This study aimed to investigate a series of problems associated with the investment casting of TiAl alloys. The mold filling and solidification of this casting model were numerically simulated using ProCAST. Shrinkage porosity was quantitatively predicted by a built-in feeding criterion. The results obtained from the numerical simulations were compared with experiments, which were carried out on Vacuum Skull Furnace using an investment block mold. The investment casting of TiAl grating was conducted for verifying the correctness and feasibility of the proposed method. The tensile test results indicated that, at room temperature, the tensile strength and elongation were approximately 675 MPa and 1.7%, respectively. The microstructure and mechanical property of the investment cast TiAl alloy were discussed.http://www.mdpi.com/2075-4701/5/4/2328numerical simulationTiAl alloysinvestment castingshrinkage porosity
spellingShingle Yi Jia
Shulong Xiao
Jing Tian
Lijuan Xu
Yuyong Chen
Modeling of TiAl Alloy Grating by Investment Casting
Metals
numerical simulation
TiAl alloys
investment casting
shrinkage porosity
title Modeling of TiAl Alloy Grating by Investment Casting
title_full Modeling of TiAl Alloy Grating by Investment Casting
title_fullStr Modeling of TiAl Alloy Grating by Investment Casting
title_full_unstemmed Modeling of TiAl Alloy Grating by Investment Casting
title_short Modeling of TiAl Alloy Grating by Investment Casting
title_sort modeling of tial alloy grating by investment casting
topic numerical simulation
TiAl alloys
investment casting
shrinkage porosity
url http://www.mdpi.com/2075-4701/5/4/2328
work_keys_str_mv AT yijia modelingoftialalloygratingbyinvestmentcasting
AT shulongxiao modelingoftialalloygratingbyinvestmentcasting
AT jingtian modelingoftialalloygratingbyinvestmentcasting
AT lijuanxu modelingoftialalloygratingbyinvestmentcasting
AT yuyongchen modelingoftialalloygratingbyinvestmentcasting