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首页> 外文会议>North American Manufacturing Research Conference >Feasibility Exploration of Superalloys for AISI 4140 Steel Repairing Using Laser Engineered Net Shaping
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Feasibility Exploration of Superalloys for AISI 4140 Steel Repairing Using Laser Engineered Net Shaping

机译：使用激光工程网塑形AISI 4140钢修复超合金的可行性探索

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摘要

Due to high strength and ductility, AISI 4141 alloy steel is widely used in many industrial applications, such as gears and blades. When it is composed to harsh working environment, severe mechanical failures may happen. In order to save the high added value of the components, necessary repairing techniques are required to recover their functionality. Laser Engineered Net Shaping (LENS) is an innovative technology for metal parts repairing and rebuilding due to its metallurgical bonding and exhibit heat affected zone (HAZ). Compared to other repairing processes, LENS cannot only reduce the manufacturing time and cost, increase material utilization, but also provide an outstanding as-fabricated mechanical properties. Considering the compatibility and availability of powder materials, the selection of to-be-fabricated materials are important and decisive to the mechanical properties and the quality of the deposits. In this investigation, nickel-based and cobalt based superalloys are deposited onto AISI 4140 steel substrate using laser engineered net shaping (LENS) process to verify the feasibility of these superalloys for repairing of AISI 4140 workpieces. The micro-hardness, tensile strength, fracture and wear resistance are analyzed to testify the resistance of deformation, tension and anti-friction performance of deposited materials.
机译：由于高强度和延展性，AISI 4141合金钢广泛应用于许多工业应用，例如齿轮和叶片。当它组成苛刻的工作环境时，可能会发生严重的机械故障。为了节省元件的高附加值，需要必要的修复技术来恢复其功能。激光工程净整形（镜头）是由于其冶金粘接而修复和重建的金属部件的创新技术，并且具有热影响区域（HAZ）。与其他修复过程相比，镜片不能仅降低制造时间和成本，提高材料利用率，而且还提供了出色的制造机械性能。考虑到粉末材料的相容性和可用性，待制造的材料的选择是重要的，对机械性能和沉积物的质量决定性是重要的和决定性的。在该研究中，使用激光工程网整形（镜头）工艺将基于镍和钴基的高温合金沉积在AISI 4140钢基板上，以验证这些超合金的可行性，用于修复AISI 4140工件。分析微硬度，拉伸强度，断裂和耐磨性，以证明沉积材料变形，张力和抗摩擦性能的电阻。

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