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Laser & Optoelectronics Progress, Volume. 59, Issue 3, 0316003(2022)

Microstructure and Mechanical Properties of Heat-Treated TC17 Titanium Alloy Formed via Point-Mode Forging Laser Deposition

Guangfa Cui, Mingzhe Xi*, Haoyang Zhou, Shuai Chen, and Kun Cheng
Author Affiliations
  • Key Laboratory of Advanced Forging & Stamping Technology and Science, Ministry of Education, Yanshan University, Qinhuangdao , Hebei 066004, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
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    References (23)
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    Figures & Tables(11)
    Schematic of sediment and sampling location

    Fig. 1. Schematic of sediment and sampling location

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    Schematic of size of tensile specimen

    Fig. 2. Schematic of size of tensile specimen

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    Metallographic morphology of TC17 titanium alloy of point-mode forging laser deposition

    Fig. 3. Metallographic morphology of TC17 titanium alloy of point-mode forging laser deposition

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    Low-magnification and high-magnification structures of different heat treatment processes. (a1) 610 ℃/1 h, air cooling (AC)， 50×; (b1) 730 ℃/1 h,AC, 50×; (c1) 850 ℃/1 h,AC, 50×; (a2) 610 ℃/1 h,AC, 1000×; (b2) 730 ℃/1 h,AC, 1000×; (c2) 850 ℃/1 h,AC, 1000×

    Fig. 4. Low-magnification and high-magnification structures of different heat treatment processes. (a1) 610 ℃/1 h, air cooling (AC)， 50×; (b1) 730 ℃/1 h,AC, 50×; (c1) 850 ℃/1 h,AC, 50×; (a2) 610 ℃/1 h,AC, 1000×; (b2) 730 ℃/1 h,AC, 1000×; (c2) 850 ℃/1 h,AC, 1000×

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    Schematic of location of microhardness test points

    Fig. 5. Schematic of location of microhardness test points

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    L-direction hardness changes under different conditions

    Fig. 6. L-direction hardness changes under different conditions

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    T-direction hardness changes under different conditions

    Fig. 7. T-direction hardness changes under different conditions

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    Room temperature tensile stress-strain curves in L- direction

    Fig. 8. Room temperature tensile stress-strain curves in L- direction

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    Room temperature tensile stress-strain curves in T- direction

    Fig. 9. Room temperature tensile stress-strain curves in T- direction

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    Dimple morphology of fracture center in as-deposited state and different annealed states. (a) As-deposited state; (b) annealing at 610 ℃/1 h; (c) annealing at 730 ℃/1 h; (d) annealing at 850 ℃/1 h

    Fig. 10. Dimple morphology of fracture center in as-deposited state and different annealed states. (a) As-deposited state; (b) annealing at 610 ℃/1 h; (c) annealing at 730 ℃/1 h; (d) annealing at 850 ℃/1 h

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    • Table 1. Experimental process parameters of point-mode forging laser direct deposition

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      Table 1. Experimental process parameters of point-mode forging laser direct deposition

      Power /kWScanning speed /（mm⋅min-1）Scanning overlap rate /%Spot diameter /mmSingle layer thickness /mmPowder feeding rate /（g⋅min-1）Depression /mmIndenter diameter /mmPoint forging lap rate /%
      1.6360333.00.73.50.253.50
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    Guangfa Cui, Mingzhe Xi, Haoyang Zhou, Shuai Chen, Kun Cheng. Microstructure and Mechanical Properties of Heat-Treated TC17 Titanium Alloy Formed via Point-Mode Forging Laser Deposition[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0316003

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    Paper Information

    Category: Materials

    Received: Apr. 6, 2021

    Accepted: May. 17, 2021

    Published Online: Jan. 24, 2022

    The Author Email: Mingzhe Xi (ximingzhe@ysu.edu.cn)

    DOI:10.3788/LOP202259.0316003

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology