The potential use of laser cladded functionally graded materials to mitigate degradation in boiler tube heat exchangers for power plant applications: a review

IF 2.4 4区材料科学 Q3 MATERIALS SCIENCE, COATINGS & FILMS

Surface Engineering Pub Date : 2023-06-03 DOI:10.1080/02670844.2023.2249653

Joseph B. Morake, J. Mutua, MartinM . Ruthandi, E. O. Olakanmi

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引用次数: 0

Abstract

ABSTRACT Surface modification is essential to safeguard heat exchangers from premature failure spurred by deterioration mechanisms such as corrosion and wear, which diminish performance. Meanwhile, modifying some substrates with dissimilar materials is challenging due to a mismatch in material properties. Moreover, individual alloy coatings on substrates are usually insufficient in the required material properties, leading to accelerated failure of equipment, especially in power plant industries. This article summarised the knowledge base on functionally graded materials (FGMs) while emphasising how this promising class of novel materials can reduce deterioration. Additionally, laser cladding is established to be a suitable technique for processing FGMs. A particular focus is laid on the laser beam interaction with the FGM and expounding on the processing and material parameters that affect the microstructural properties of FGMs. The development prospects for processing FGMs with superior clad quality characteristics to increase boiler pipes’ service life and performance are also highlighted.

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激光包覆功能梯度材料在电厂锅炉管换热器中的潜在用途：综述

摘要：表面改性对于保护换热器免受腐蚀和磨损等劣化机制引发的过早失效至关重要，这些劣化机制会降低性能。同时，由于材料性能的不匹配，用不同材料修饰一些基底是具有挑战性的。此外，基底上的单个合金涂层通常不具备所需的材料性能，导致设备加速故障，尤其是在发电厂行业。本文总结了功能梯度材料（FGM）的知识库，同时强调了这类有前途的新型材料如何减少退化。此外，激光熔覆被认为是加工FGM的合适技术。重点研究了激光束与FGM的相互作用，阐述了影响FGM微观结构性能的工艺和材料参数。还强调了加工具有优异包层质量特性的FGM以提高锅炉管道的使用寿命和性能的发展前景。

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

Surface Engineering 工程技术-材料科学：膜

CiteScore

5.60

自引率

14.30%

发文量

审稿时长

2.3 months

期刊介绍： Surface Engineering provides a forum for the publication of refereed material on both the theory and practice of this important enabling technology, embracing science, technology and engineering. Coverage includes design, surface modification technologies and process control, and the characterisation and properties of the final system or component, including quality control and non-destructive examination.