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Cause Analysis and Improvement Measures of Center Cracks of Large-size Molybdenum Alloys during Radial Forging AITranslate

School of Materials Science and Engineering,Central South University;School of Materials Science and Engineering,Central South University
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Publisher: Editorial Office of Rare Metals and Cemented Carbides
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Abstract AITranslate

The periodic central cracks of large-size radially forged molybdenum alloy bars were analyzed by metallographic microstructure observation, chemical composition analysis, fracture morphology observation, microhardness test, finite element simulation and other methods.The results show that there is slight component segregation in the center of the bar, and severe uneven deformation is the main reason for the center cracks in the bar during forging.By improving the purity of raw materials, homogenizing annealing, and increasing the tempering temperature and time, serious center cracks in large-size molybdenum alloy bars during processing can be prevented to a certain extent.

KeyWords AITranslate

molybdenum alloy bar radial forging center crack uneven deformation component segregation

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Basic Information:

DOI:

Chinese Library Classification Number:TG146.412[金属学及工艺—金属材料]

Citation Information:

The periodic central cracks of large-size radially forged molybdenum alloy bars were analyzed by metallographic microstructure observation, chemical composition analysis, fracture morphology observation, microhardness test, finite element simulation and other methods.The results show that there is slight component segregation in the center of the bar, and severe uneven deformation is the main reason for the center cracks in the bar during forging.By improving the purity of raw materials, homogenizing annealing, and increasing the tempering temperature and time, serious center cracks in large-size molybdenum alloy bars during processing can be prevented to a certain extent.

quote

GB/T 7714-2015 [1] LU Yao, YANG Dong-lin. Cause Analysis and Improvement Measures of Center Cracks of Large-size Molybdenum Alloys during Radial Forging[J]. Rare Metals and Cemented Carbides, 2021(1): 35-39.
MLA [1] LU Yao, and YANG Dong-lin. "Cause Analysis and Improvement Measures of Center Cracks of Large-size Molybdenum Alloys during Radial Forging." Rare Metals and Cemented Carbides, no. 1, 2021, pp. 35-39.
APA [1] LU Yao, & YANG Dong-lin. (2021). Cause Analysis and Improvement Measures of Center Cracks of Large-size Molybdenum Alloys during Radial Forging. Rare Metals and Cemented Carbides(1), 35-39.
IEEE [1] LU Yao and YANG Dong-lin, "Cause Analysis and Improvement Measures of Center Cracks of Large-size Molybdenum Alloys during Radial Forging," Rare Metals and Cemented Carbides, no. 1, pp. 35-39, 2021. keywords: {molybdenum alloy bar;radial forging;center crack;uneven deformation;component segregation}