基于原位微锻造冷喷涂技术的金属涂层研究进展

张文正, 雒晓涛, 刘 桥, 李长久

doi:10.16577/j.issn.1001-1560.2022.0004

材料保护 >

2022 , Vol. 55 >Issue 1: 34 - 43

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0004

冷喷涂专栏

基于原位微锻造冷喷涂技术的金属涂层研究进展

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西安交通大学金属材料强度国家重点实验室

雒晓涛(1986-)，博士，副教授，主要研究方向为热喷涂、冷喷涂、材料表面改性及器件制造，电话：15934818670，E - mail：luoxiaotao@mail.xjtu.edu.cn

收稿日期: 2021-11-16

修回日期: 2021-12-10

录用日期: 2021-12-17

网络出版日期: 2023-12-15

基金资助

国家自然科学基金项目(51875443)；广东基础与应用基础研究基金项目(2019B1515120016,202002030290)资助

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Research Progress in Metallic Coatings Prepared with the In - Situ Micro - Forging Assisted Cold Spraying

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State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China

Received date: 2021-11-16

Revised date: 2021-12-10

Accepted date: 2021-12-17

Online published: 2023-12-15

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摘要

原位微锻造冷喷涂技术是一种通过在喷涂粉末中混入大尺寸喷丸颗粒，借助喷丸颗粒对已沉积涂层的锤击效应实现喷涂沉积层的原位致密化，同时提高沉积体的自身强度和与基材的结合强度的技术。为此，对原位微锻造冷喷涂技术的发展状况进行了总结。首先，对该技术工作原理进行了简要介绍，并探讨了喷丸体积分数、颗粒尺寸等参数对涂层的影响；其次，探讨了涂层微观组织的变化，包括颗粒间结合质量、塑性变形程度以及后续热处理对组织的影响；之后，总结了力学性能和腐蚀保护性能的特点；最后，指出了进一步深入研究需要关注的问题。

关键词： 原位微锻造冷喷涂; 粒子间结合; 组织细化; 腐蚀保护; 增材制造; 再制造

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张文正, 雒晓涛, 刘桥, 李长久 . 基于原位微锻造冷喷涂技术的金属涂层研究进展[J]. 材料保护, 2022 , 55(1) : 34 -43 . DOI: 10.16577/j.issn.1001-1560.2022.0004

Abstract

In - situ densification of the sprayed coating layer was realized by mixing large size shot peening particles into spray powder, which could improve not only the strength of the deposits but also the bonding strength of the deposited coatings with the substrate through the hammering effect of shot peening particles on deposited coatings. In this paper, recent development of the in - situ micro - forging assisted cold spraying technology was summarized. Firstly, the working principle of this technology was briefly introduced, and the influence of parameters such as shot peening volume fraction and particle size was discussed. Secondly, the evolution of the microstructure of the coating was discussed, including its effects on interparticle bonding quality, plastic deformation degree and subsequent heat treatment on the microstructure. Then, the mechanical properties and corrosion protection performance were summarized. Finally, some important issues which needed further investigations were pointed out.

Key words： in - situ micro - forging assisted cold spraying; interparticle bonding; microstructure refinement; corrosion protection; additive manufacturing; remanufacturing

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