真空离心铸造大尺寸铀钼合金飞轮研究

康泰峰; 田春雨; 陈波; 刘建成; 孙祎强; 刘业光

doi:10.15980/j.tzzz.2020.08.003

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真空离心铸造大尺寸铀钼合金飞轮研究
Uniformity of Large Size Flywheel of Uranium-molybdenum Alloy by Vacuum Centrifugal Casting
2020年40卷第8期页码：824-827
纸质出版日期： 2020 ，
DOI： 10.15980/j.tzzz.2020.08.003

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[1]康泰峰,田春雨,陈波,刘建成,孙祎强,刘业光.真空离心铸造大尺寸铀钼合金飞轮研究[J].特种铸造及有色合金,2020,40(08):824-827.

Kang Taifeng, Tian Chunyu, Chen Bo, et al. Uniformity of Large Size Flywheel of Uranium-molybdenum Alloy by Vacuum Centrifugal Casting[J]. Special Casting & Nonferrous Alloys, 2020,40(8):824-827.
[1]康泰峰,田春雨,陈波,刘建成,孙祎强,刘业光.真空离心铸造大尺寸铀钼合金飞轮研究[J].特种铸造及有色合金,2020,40(08):824-827. DOI： 10.15980/j.tzzz.2020.08.003.

Kang Taifeng, Tian Chunyu, Chen Bo, et al. Uniformity of Large Size Flywheel of Uranium-molybdenum Alloy by Vacuum Centrifugal Casting[J]. Special Casting & Nonferrous Alloys, 2020,40(8):824-827. DOI： 10.15980/j.tzzz.2020.08.003.

摘要

采用真空离心铸造制备了质量为1t、直径为■1.1m的铀钼合金飞轮。热处理后解剖发现

铸件不同位置成分和晶粒尺寸均匀

Mo含量为2.00%～2.08%

晶粒尺寸为53～73μm

飞轮中杂质含量较低

碳化物夹杂尺寸较小

且弥散分布。对比了不同位置试样的力学性能

确定其抗拉强度均在800 MPa以上

冲击韧度在35J·cm

-2

以上

断裂韧度可达70 MPa·m

1/2

。

Abstract

Uranium molybdenum alloy flywheel with 1.1 m in external diameter and 1 t in weight was produced by vacuum centrifugal casting. It is found that the composition and grain size are uniform at different positions of the casting after heat treatment. The Mo content is in range of 2.00% to 2.08%

and the grain size is in range of 53 μm to 73 μm. The impurity content in flywheel is low

and the size of the carbide inclusions is small with dispersed distribution. Comparing the mechanical properties at different flywheel locations

it is determined that all the tensile strength

impact toughness and fracture toughness can reach above 800 MPa

35 J·cm

-2

and 70 MPa·m

1/2

respectively.