Experimental investigation and parametric optimization for minimization of dilution during direct laser metal deposition of tungsten carbide and cobalt powder mixture on SS304 substrate

被引：24

作者：

Singh, Anitesh Kumar ^{[1
]}

Bal, Kalinga Simant ^{[2
]}

Dey, Dipanjan ^{[1
]}

Das, Amit Kumar ^{[1
]}

Pal, Abhishek Rudra ^{[3
]}

Pratihar, Dilip Kumar ^{[1
]}

Choudhury, Asimava Roy ^{[1
]}

机构：

[1] Indian Inst Technol Kharagpur, Dept Mech Engn, Kharagpur 721302, W Bengal, India

[2] CV Raman Global Univ, Dept Mech Engn, Bhubaneswar 752054, Odisha, India

[3] Indian Inst Technol Kharagpur, Adv Technol Dev Ctr, Kharagpur 721302, W Bengal, India

来源：

POWDER TECHNOLOGY | 2021年 / 390卷

关键词：

Direct laser metal deposition; WC-Co powder mixture; Optimization; Microstructure; Thermo-cycle; Hardness; EMPIRICAL-STATISTICAL MODEL; PROCESSING PARAMETERS; WC-CO; WC-12CO; MICROSTRUCTURE; PREDICTION; ALGORITHM; FEEDSTOCK; COATINGS; ENERGY;

D O I：

10.1016/j.powtec.2021.05.056

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Optimization of process parameters for direct laser metal deposition of WC (88 wt%) and Co (12 wt%) mixed powder on SS304 substrate was carried out to obtain minimum dilution. The effect of process parameters on clad geometric elements was expressed through polynomial relations. A mathematical expression for dilution was developed in terms of clad geometric elements and then verified with experimentally obtained dilution. The regression analysis for each geometric element and dilution was also studied. To obtain an optimized set of process parameters four recently developed optimization algorithms were used, which was then followed by a confirmation test. Bonobo Optimizer algorithm was fast during the search for the globally optimum solution. A detailed macroscopic, microstructural, thermo-cycle and XRD analysis for the confirmed optimized run was carried out along with the comparison study. The hardness behaviour of clad tracks was also studied by comparing it with that of the substrate. (c) 2021 Elsevier B.V. All rights reserved.

引用

页码：339 / 353

页数：15