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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Effect of D/T_p ratio on stir zone characteristics of friction stir-welded high-strength low-alloy steel plates
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Effect of D/T_p ratio on stir zone characteristics of friction stir-welded high-strength low-alloy steel plates

机译：D / T_p比对摩擦搅拌焊接高强度低合金钢板搅拌区特性的影响

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摘要

In this study, the effect of tool shoulder diameter (D) to the plate thickness (T-p) ratio on tensile and impact toughness properties of friction stir-welded naval grade high-strength low-alloy steel was investigated. A naval grade high-strength low-alloy steel of 5 mm thick plates was welded with tool rotational speed of 600 r/min and welding speed of 30 mm/min using tungsten-based alloy tools having D/T-p ratio varying from 4 to 6. Microstructural characteristics of the weld joints were analyzed using optical microscopy and scanning electron microscopy with energy dispersive spectroscopy along with the evaluation of tensile properties. From this investigation, it was found that the joint fabricated using a D/T-p ratio of 5 (25 mm shoulder diameter) exhibited superior mechanical properties compared to other joints.
机译：在这项研究中，研究了刀肩直径（D）与板厚（T-p）之比对搅拌摩擦焊接海军级高强度低合金钢的拉伸和冲击韧性性能的影响。使用D / Tp比为4到6的钨基合金工具，以600 r / min的工具转速和30 mm / min的焊接速度焊接5 mm厚钢板的海军级高强度低合金钢。 。使用光学显微镜和具有能量色散光谱的扫描电子显微镜分析了焊接接头的微结构特征，并评估了拉伸性能。从该研究中发现，与其他接头相比，使用D / T-p比率为5（肩部直径为25 mm）制造的接头具有更好的机械性能。

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