Multi-objective optimization of key process parameters in laser cladding Stellite12 cobalt-based alloy powder

IF 1.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Laser Applications Pub Date : 2023-12-13 DOI:10.2351/7.0001163

Yang Zou, Shaoqi Shi, Zefeng Yang, Teng Xu, Yongqi Liang, Qiang Yu, Yuchuan Cheng, Gaojie Xu, Zhixiang Li, Fei Long

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引用次数: 0

Abstract

Laser cladding (LC) process parameters have a substantial influence on coating morphology and mechanical characteristics; it is necessary to optimize key parameters for laser processing. In this study, Stellite12 cobalt-based alloy powder with excellent corrosion and wear resistance was selected as the cladding material. The multi-objective optimization model of the LC process was established by response surface methodology, laser power, scanning speed, and powder feeding rate as input factors, and the target response variables involve dilution, aspect ratio, and microhardness of the single-track cladding. Combined with variance analysis (ANOVA), the multi-objective optimization of laser power, scanning speed, and powder feeding rate was conducted. A single-track cladding layer with a dilution of 18.29%, an aspect ratio of 3.88, and a microhardness of 634.67 HV0.2 was obtained using the optimized process parameters. Errors between the predicted and actual values of single-track cladding dilution, aspect ratio, and microhardness were less than 8%, which verified the accuracy of the established model.

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多目标优化激光熔覆 Stellite12 钴基合金粉末的关键工艺参数

激光熔覆（LC）工艺参数对涂层形貌和机械特性有很大影响，因此有必要优化激光加工的关键参数。本研究选择了具有优异耐腐蚀性和耐磨性的 Stellite12 钴基合金粉末作为熔覆材料。以激光功率、扫描速度和送粉率为输入因子，以单轨熔覆材料的稀释度、长宽比和显微硬度为目标响应变量，采用响应面方法建立了激光熔覆工艺的多目标优化模型。结合方差分析（ANOVA），对激光功率、扫描速度和送粉率进行了多目标优化。使用优化后的工艺参数，获得了稀释度为 18.29%、纵横比为 3.88、显微硬度为 634.67 HV0.2 的单轨熔覆层。单轨包层稀释度、纵横比和显微硬度的预测值与实际值之间的误差均小于 8%，这验证了所建立模型的准确性。

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来源期刊

Journal of Laser Applications 物理-光学

CiteScore

3.60

自引率

9.50%

发文量

125

审稿时长

>12 weeks

期刊介绍： The Journal of Laser Applications (JLA) is the scientific platform of the Laser Institute of America (LIA) and is published in cooperation with AIP Publishing. The high-quality articles cover a broad range from fundamental and applied research and development to industrial applications. Therefore, JLA is a reflection of the state-of-R&D in photonic production, sensing and measurement as well as Laser safety. The following international and well known first-class scientists serve as allocated Editors in 9 new categories: High Precision Materials Processing with Ultrafast Lasers Laser Additive Manufacturing High Power Materials Processing with High Brightness Lasers Emerging Applications of Laser Technologies in High-performance/Multi-function Materials and Structures Surface Modification Lasers in Nanomanufacturing / Nanophotonics & Thin Film Technology Spectroscopy / Imaging / Diagnostics / Measurements Laser Systems and Markets Medical Applications & Safety Thermal Transportation Nanomaterials and Nanoprocessing Laser applications in Microelectronics.