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首页> 外文会议>Asian Pacific conference for fracture and strength'99 (APCFS'99) >Tensile Shear Strength of Inconel 600 and 690 Welded with Pulsed Nd:YAG Laser
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Tensile Shear Strength of Inconel 600 and 690 Welded with Pulsed Nd:YAG Laser

机译：脉冲Nd：YAG激光焊接Inconel 600和690的拉伸剪切强度

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摘要

This paper deals with the investigation of the tensile shear strength of Inconel 600 tube welded with Inconel 690rnsleeve by the remote sleeve repair-welding technology using the pulsed Nd:YAG laser for increasing the lifetimernof the steam generator tube in the nuclear power plant. The Inconel 600 tube and Inconel 690 sleeve used for highrntemperature and high pressure service were welded as round lap welding by Nd:YAG laser. The relationshiprnbetween the connection width and welding parameters have been investigated for the fundamental research. It isrnobserved that the tensile shear strength, 340 MPa of the welded specimen is corresponded to about 60% of therntensile strength of the Inconel 600, 550MPa. The difference between the hardness in the base metal and that of thernlaser welds is shown to be about 10%. Ductile fracture is dominately occurred in the welds but the cracking hasrnnot been observed. In spite of absence of the crack, the tensile shear strength of welds is not sufficient.
机译：本文采用脉冲Nd：YAG激光的远程套管修复焊接技术，研究了用Inconel 690纳米管焊接的Inconel 600管的拉伸剪切强度，以延长核电站蒸汽发生器管的使用寿命。 Nd：YAG激光器将用于高温和高压场合的Inconel 600管和Inconel 690套管焊接成圆焊。研究了连接宽度与焊接参数之间的关系，以进行基础研究。可以观察到，焊接试样的拉伸剪切强度340 MPa相当于Inconel 600 550 MPa的拉伸强度的60％左右。母材的硬度与激光焊接的硬度之间的差异显示为约10％。焊缝中主要发生延性断裂，但未观察到裂纹。尽管没有裂纹，但焊缝的拉伸剪切强度仍不足。

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