Optimization and prediction of hardness, wear and surface roughness on age hardened stellite 6 alloys

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Review Pub Date : 2022-01-01 DOI:10.1051/mfreview/2022008

Karthik S.R., Neelakanta V. Londe, R. Shetty, R. Nayak, Adithya Hedge

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引用次数: 9

Abstract

Growing demand for Stellite 6 alloys due to its attractive properties such as superior strength, toughness, wear resistance, fracture resistant characteristics, and their exceptional resistance to corrosion has made them applicable in industrial as well as commercial applications, such as aerospace industries, nuclear waste storage, automobile industries and surgical implantation. However, in spite of these applications, automotive part manufacturers mainly (Bearing Materials) are looking for a comprehensive study, such as mechanics of friction and the relationship between friction and wear. Hence in this paper, an attempt has been made to study the tribological behavior such as wear characterization and surface roughness of age hardened Stellite 6 alloys. The main objective of the research is to determine the favorable tribological conditions for improving wear resistant properties and surface roughness on age hardened Stellite 6 alloys. Hence two body wear study and surface roughness study during Wire Electric Discharge Machining (WEDM) of age hardened Stellite 6 alloys based on Analysis of Variance (ANOVA), Taguchi's Design of Experiment (TDOE), Response Surface Methodology(RSM) and Desirability Functional Analysis (DFA) have been used to achieve this goal. From the study it is observed that optimum values for improving hardness, wear and surface roughness values can be easily achieved with less time and cost by adopting the said techniques. •From microstructural observation, as the peak current increases there is larger amount of dendritic carbides and cracking of carbides due to high plastic deformation resulting in thermal softening of Stellite 6 alloy during wire electric discharge machining resulting in better surface roughness values. The second-order model for hardness, wear and surface roughness using response surface methodology can be adopted for predicting for hardness, wear and surface roughness in any experimental domain.

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时效硬化stellit6合金硬度、磨损和表面粗糙度的优化与预测

由于其具有优异的强度、韧性、耐磨性、抗断裂特性以及优异的耐腐蚀性等特性，对钨铬钴合金的需求不断增长，使其适用于工业和商业应用，如航空航天工业、核废料储存、汽车工业和外科手术植入。然而，尽管有这些应用，汽车零部件制造商主要(轴承材料)正在寻找一个全面的研究，如摩擦力学和摩擦与磨损之间的关系。因此，本文尝试对时效硬化的斯泰莱6合金的磨损特性和表面粗糙度等摩擦学行为进行了研究。研究的主要目的是确定有利于提高时效硬化Stellite 6合金耐磨性和表面粗糙度的摩擦学条件。为此，采用方差分析(ANOVA)、田口试验设计(TDOE)、响应面法(RSM)和期望功能分析(DFA)等方法对时效硬化Stellite 6合金电火花线切割加工(WEDM)过程中的两体磨损和表面粗糙度进行了研究。从研究中可以看出，采用上述技术可以以更少的时间和成本轻松获得硬度、磨损和表面粗糙度值的最佳值。•从显微组织观察，随着峰值电流的增加，线材电火花加工过程中，由于高塑性变形导致Stellite 6合金的热软化，树枝状碳化物数量增加，碳化物开裂，从而使表面粗糙度值更好。基于响应面法的硬度、磨损和表面粗糙度二阶模型可用于任意实验域的硬度、磨损和表面粗糙度预测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Manufacturing Review ENGINEERING, MANUFACTURING-

CiteScore

5.40

自引率

12.00%

发文量

审稿时长

8 weeks

期刊介绍： The aim of the journal is to stimulate and record an international forum for disseminating knowledge on the advances, developments and applications of manufacturing engineering, technology and applied sciences with a focus on critical reviews of developments in manufacturing and emerging trends in this field. The journal intends to establish a specific focus on reviews of developments of key core topics and on the emerging technologies concerning manufacturing engineering, technology and applied sciences, the aim of which is to provide readers with rapid and easy access to definitive and authoritative knowledge and research-backed opinions on future developments. The scope includes, but is not limited to critical reviews and outstanding original research papers on the advances, developments and applications of: Materials for advanced manufacturing (Metals, Polymers, Glass, Ceramics, Composites, Nano-materials, etc.) and recycling, Material processing methods and technology (Machining, Forming/Shaping, Casting, Powder Metallurgy, Laser technology, Joining, etc.), Additive/rapid manufacturing methods and technology, Tooling and surface-engineering technology (fabrication, coating, heat treatment, etc.), Micro-manufacturing methods and technology, Nano-manufacturing methods and technology, Advanced metrology, instrumentation, quality assurance, testing and inspection, Mechatronics for manufacturing automation, Manufacturing machinery and manufacturing systems, Process chain integration and manufacturing platforms, Sustainable manufacturing and Life-cycle analysis, Industry case studies involving applications of the state-of-the-art manufacturing methods, technology and systems. Content will include invited reviews, original research articles, and invited special topic contributions.