[1]钱绍祥.doi: 10.3969/j.issn.1001-3849.2025.10.008激光熔覆工艺参数对镍基熔覆层成形特性的影响[J].电镀与精饰,2025,(10):52-59.
　Qian Shaoxiang*.Effect of laser cladding process parameters on the forming characteristics of nickel-based cladding layer[J].Plating & Finishing,2025,(10):52-59.
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doi: 10.3969/j.issn.1001-3849.2025.10.008激光熔覆工艺参数对镍基熔覆层成形特性的影响()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年10
页码:
52-59
栏目:
出版日期:
2025-10-31

文章信息/Info

Title:
Effect of laser cladding process parameters on the forming characteristics of nickel-based cladding layer
作者:
钱绍祥
(镇江市高等专科学校 现代装备制造学院,江苏 镇江 212028)
Author(s):
Qian Shaoxiang*
(School of Modern Equipment Manufacturing, Zhenjiang College, Zhenjiang 212028, China)
关键词:
激光熔覆; 正交试验; 极差分析; 工艺参数
Keywords:
laser cladding;  orthogonal test;  range analysis;  process parameter
分类号:
TG174.44
文献标志码:
A
摘要:
为了研究激光熔覆工艺参数对316L不锈钢表面制备镍基合金熔覆层成形特性的影响规律，运用正交试验法开展了镍基熔覆层的制备试验，采用极差分析法研究了熔覆层的成形特征。结果发现：影响镍基熔覆层宽度的重要性因素依次为激光功率、扫描速度、送粉速率；影响高度的重要性因素依次为扫描速度、送粉速率、激光功率；影响稀释率的重要性因素依次为激光功率、扫描速度、送粉速率；以稀释率为主要优化目标，获得的最佳工艺参数为激光功率1.8 kW、扫描速度5 mm/s和送粉速率30 g/min。该条件下，熔覆层和母材呈致密的冶金结合，层中晶粒取向呈随机分布，位错密度较低但分布比较均匀，截面硬度可达到HV0.2 600 左右，约为母材硬度的2.4倍。
Abstract:
In order to research the influence of process parameters on the forming characteristics of nickel-based alloy cladding layer on the surface of 316L stainless steel, preparation of nickel-based cladding layer were carried out by orthogonal experimental methods. Geometric characteristics of cladding layers were studied by range analysis methods. The results show that the important factors affecting the width of the nickel-based cladding layer are laser power, scanning speed, and powder feeding rate in that order, the important factors affecting its height are scanning speed, powder feeding rate, and laser power in that order, the important factors affecting its dilution rate are laser power, scanning speed, and powder feeding rate in that order. Taking the dilution rate as the main optimization target parameter, the optimal process parameter combination is determined to be laser power of 1.8 kW, scanning speed of 5 mm/s, and powder feeding rate of 30 g/min. Under this condition, the prepared cladding layer is in a dense metallurgical bond with the base material, grain orientation is distributed randomly, dislocation density is low but its distribution is relatively uniform. The microhardness of the cross-section of the nickel-based cladding layer can reach about 600 HV0.2, which is about 2.4 times the hardness of the base material

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更新日期/Last Update: 2025-10-16