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Laser shock peening method of boron carbide ceramic
The invention discloses a laser shock peening method of boron carbide ceramic. The method comprises the following steps: providing a boron carbide ceramic test piece containing at least one polished surface; covering a polished surface of the boron carbide ceramic test piece with an absorption layer, and applying a restraint layer on the absorption layer; enabling the polished surface to which the restraint layer is applied to face a laser beam and carrying out laser shock peening treatment on the polished surface, wherein the laser shock peening treatment adopts a laser device with the wavelength of 1064nm, the pulse is 20-50ns, the spot diameter of the laser is 2-4mm, the single pulse energy is 2-7J, the frequency is 2-5Hz, the spot overlap rate of the single pulse laser is 37.5-62.5%, and the shock frequency is 2 times. According to the laser shock strengthening method for the boron carbide ceramic, high-quality shock strengthening and toughening of the boron carbide ceramic can be achieved; meanwhile, overall structure deformation and damage caused by laser shock strengthening are avoided.
本发明公开一种碳化硼陶瓷的激光冲击强化方法，包括如下步骤：提供含有至少一抛光面的碳化硼陶瓷试件；在碳化硼陶瓷试件的一抛光面覆盖吸收层，并在吸收层上施加约束层；将施加约束层的抛光面朝向激光束并对其进行激光冲击强化处理；其中，激光冲击强化处理采用波长为1064nm的激光器，脉冲20‑50ns，激光的光斑直径为2‑4mm，单脉冲能量2‑7J，频率2‑5Hz，单脉冲激光光斑搭接率在37.5％‑62.5％，冲击次数为2次。本发明提供的碳化硼陶瓷的激光冲击强化方法，能够实现碳化硼陶瓷的高质量冲击强韧化，并避免由于激光冲击强化引起的整体结构变形和破损。
Laser shock peening method of boron carbide ceramic
The invention discloses a laser shock peening method of boron carbide ceramic. The method comprises the following steps: providing a boron carbide ceramic test piece containing at least one polished surface; covering a polished surface of the boron carbide ceramic test piece with an absorption layer, and applying a restraint layer on the absorption layer; enabling the polished surface to which the restraint layer is applied to face a laser beam and carrying out laser shock peening treatment on the polished surface, wherein the laser shock peening treatment adopts a laser device with the wavelength of 1064nm, the pulse is 20-50ns, the spot diameter of the laser is 2-4mm, the single pulse energy is 2-7J, the frequency is 2-5Hz, the spot overlap rate of the single pulse laser is 37.5-62.5%, and the shock frequency is 2 times. According to the laser shock strengthening method for the boron carbide ceramic, high-quality shock strengthening and toughening of the boron carbide ceramic can be achieved; meanwhile, overall structure deformation and damage caused by laser shock strengthening are avoided.
本发明公开一种碳化硼陶瓷的激光冲击强化方法，包括如下步骤：提供含有至少一抛光面的碳化硼陶瓷试件；在碳化硼陶瓷试件的一抛光面覆盖吸收层，并在吸收层上施加约束层；将施加约束层的抛光面朝向激光束并对其进行激光冲击强化处理；其中，激光冲击强化处理采用波长为1064nm的激光器，脉冲20‑50ns，激光的光斑直径为2‑4mm，单脉冲能量2‑7J，频率2‑5Hz，单脉冲激光光斑搭接率在37.5％‑62.5％，冲击次数为2次。本发明提供的碳化硼陶瓷的激光冲击强化方法，能够实现碳化硼陶瓷的高质量冲击强韧化，并避免由于激光冲击强化引起的整体结构变形和破损。
Laser shock peening method of boron carbide ceramic
一种碳化硼陶瓷的激光冲击强化方法
ZHANG FAN (author) / CHEN BEIDI (author) / ZHANG JINYONG (author) / WANG WEIMIN (author) / FU ZHENGYI (author)
2021-09-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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