{"title":"Achievement of comprehensive wear and thermal property of cold spayed CuCrZr coating via gradient structure design","authors":"","doi":"10.1016/j.matlet.2024.137620","DOIUrl":null,"url":null,"abstract":"<div><div>To address the inherent challenge of optimizing both strength and conductivity of the CuCrZr alloy, cold spraying is employed to enhance its surface with a comprehensive range of performance attributes. A novel gradient structure, featuring a SiC/CuCrZr layer at the top and an AlN/CuCrZr layer at the bottom, successfully fulfills the comprehensive requirements for wear resistance and thermal conductivity. Results show that the composite coating is composed of extensively deformed CuCrZr particles and undeformed ceramic particles and its microhardness and thermal conductivity closely adhere to the rule of mixtures. Additionally, the gradient coating shows the equivalent wear resistance to the SiC-CuCrZr coating. This study demonstrates the remarkable versatility of cold spraying in fabricating seamless gradient coating, while achieving predictable and controllable variations in microhardness and thermal conductivity across the coating’s thickness.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24017609","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
To address the inherent challenge of optimizing both strength and conductivity of the CuCrZr alloy, cold spraying is employed to enhance its surface with a comprehensive range of performance attributes. A novel gradient structure, featuring a SiC/CuCrZr layer at the top and an AlN/CuCrZr layer at the bottom, successfully fulfills the comprehensive requirements for wear resistance and thermal conductivity. Results show that the composite coating is composed of extensively deformed CuCrZr particles and undeformed ceramic particles and its microhardness and thermal conductivity closely adhere to the rule of mixtures. Additionally, the gradient coating shows the equivalent wear resistance to the SiC-CuCrZr coating. This study demonstrates the remarkable versatility of cold spraying in fabricating seamless gradient coating, while achieving predictable and controllable variations in microhardness and thermal conductivity across the coating’s thickness.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive