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Numerical Simulation and Experimental Study of an Ultrasonic Waveguide for Ultrasonic Casting of 35CrMo Steel

  • Metallurgy and Metal Working
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Abstract

To achieve ultrasonic casting of 35CrMo steel, the waveguide unit for introducing ultrasound into liquid steel was studied numerically and experimentally. The structure and length of the ultrasonic waveguide were optimized by modal analysis. The simulation results showed that a T-shaped waveguide unit matched the vibrational system better than an L-shaped unit. The performance of T-shaped waveguide unit was optimized when the length of the ultrasound radiator was 135 mm. The performance of the T-shaped waveguide unit was investigated in ultrasonic casting experiments, and the effect of ultrasound on the microstructure of 35CrMo steel was examined. The experimental results showed that the T-shaped waveguide was able to successfully introduce ultrasound into the 35CrMo melt. In addition, the use of a silicon nitride ceramic radiator avoided high-temperature corrosion in the molten metal. The microstructure of the treated area was significantly refined and equiaxed grains were obtained. The results represented a novel method for ultrasonic casting of steel.

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Authors and Affiliations

  1. College of Mechanical and Electrical Engineering, Central South University, 410083, Changsha, Hunan, China

    Gen Liang (Master), Chen Shi (Doctor, Associate Professor), Ya-jun Zhou & Da-heng Mao

  2. State Key Laboratory of High Performance Complex Manufacturing, Central South University, 410083, Changsha, Hunan, China

    Gen Liang (Master), Chen Shi (Doctor, Associate Professor), Ya-jun Zhou & Da-heng Mao

Authors
  1. Gen Liang
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  2. Chen Shi
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  3. Ya-jun Zhou
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  4. Da-heng Mao
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Corresponding authors

Correspondence to Gen Liang or Chen Shi.

Additional information

Foundation Item: Item Sponsored by National Basic Research Program of China (2014CB046702)

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Liang, G., Shi, C., Zhou, Yj. et al. Numerical Simulation and Experimental Study of an Ultrasonic Waveguide for Ultrasonic Casting of 35CrMo Steel. J. Iron Steel Res. Int. 23, 772–777 (2016). https://doi.org/10.1016/S1006-706X(16)30119-4

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  • DOI: https://doi.org/10.1016/S1006-706X(16)30119-4

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