YT30刀具表面磁控溅射AlTiCrN涂层的微观组织及摩擦性能

doi:10.13251/j.issn.0254-6051.2020.11.043

金属热处理 ›› 2020, Vol. 45 ›› Issue (11): 222-225.DOI: 10.13251/j.issn.0254-6051.2020.11.043

YT30刀具表面磁控溅射AlTiCrN涂层的微观组织及摩擦性能

谭大庆¹, 胡韶华², 万元³, 谭伟⁴

1.重庆工业职业技术学院机械工程学院, 重庆 400050;
2.重庆工程职业技术学院电气工程学院, 重庆 400050;
3.中国兵器工业第五九研究所精密成形中心, 重庆 400039;
4.重庆工商大学机械工程学院, 重庆 400020

收稿日期:2020-04-22 出版日期:2020-11-25 发布日期:2020-12-29
作者简介:谭大庆(1984—),男,副教授,主要研究方向为刀具加工设计,E-mail:tandaqing_cqipc@126.com
基金资助:
重庆市教委科学研究重大课题(KJZD-K201903401)

Microstructure and friction properties of AlTiCrN coating prepared by magnetron sputtering on surface of YT30 tool

Tan Daqing¹, Hu Shaohua², Wan Yuan³, Tan Wei⁴

1. School of Mechanical Engineering, Chongqing Industry Polytechnic College, Chongqing 400050, China;
2. School of Electrical Engineering, Chongqing Industry Polytechnic College, Chongqing 400050, China;
3. Precision Forming Center, The Fifty-ninth Research Institute of China North Industries, Chongqing 400039, China;
4. Mechanical Engineering College, Chongqing Technology and Business University, Chongqing 400020, China

Received:2020-04-22 Online:2020-11-25 Published:2020-12-29

摘要/Abstract

摘要： 为改善刀具性能以及优化磁控溅射参数,研究了AlTiCrN涂层的制备工艺优化过程,并对其组织结构与膜基结合力进行了分析,比较了不同载荷条件下的涂层耐磨性。研究结果表明,沉积时间120 min,沉积功率200 W为较优的磁控溅射参数。AlTiCrN涂层的物相组成为AlTiCrN、Al和CrN。AlTiCrN(111)峰表现为尖锐的衍射峰结构,涂层达到了很高的结晶程度。涂层主要由三角锥结构组成,间隙内还生成了许多细小晶粒。涂层上层区域主要由柱状晶构成,下层主要由纤维晶粒构成。AlTiCrN涂层进行划痕测试发现载荷为19 N和32 N的部位出现了摩擦力突变。通过磁控溅射涂层的YT30刀具比未镀膜刀具有更低的摩擦因数,表明对刀具进行AlTiCrN涂层涂覆后能够显著改善刀具耐磨性。当加载载荷增大后,涂覆涂层的刀具磨痕深度表现出更为平缓过渡。提高载荷到5 N后,在磨痕的两侧形成了大量的磨屑,其宽度也明显增大,并未发生涂层剥落现象。

关键词: YT30刀具, AlTiCrN涂层, 磁控溅射, 微观组织, 摩擦性能

Abstract: In order to improve the tool performance and optimize magnetron sputtering parameters, the preparation process optimization of the AlTiCrN coating was studied, the microstructure and binding force between the coating and substrate were analyzed, and the coating wear resistance under different loading conditions was compared. The results show that the deposition time of 120 min and deposition power of 200 W are the optimal magnetron sputtering parameters. The phase composition of AlTiCrN coating consists of AlTiCrN, Al and CrN. AlTiCrN(111) peaks show sharp diffraction peaks, and the coating reaches a high degree of crystallization. The coating is mainly composed of triangular cone structure and many fine grains are formed in the interstice. The upper layer of coating is mainly composed of columnar grains and the lower layer of coating is mainly composed of fibrous grains. Scratch tests on the AlTiCrN coating reveal a sudden change in friction at loads of 19 N and 32 N. The friction coefficient of YT30 tool coated by magnetron sputtering is lower than that of uncoated tools, indicating that AlTiCrN coating can significantly improve the wear resistance of the tools. When the loading load increases, the depth of tool grinding mark shows a more gentle transition. After increasing the load to 5 N, a large number of grinding particles are formed on both sides of the grinding mark, and the width of the grinding mark is significantly increased, no coating peeling occurs.

Key words: YT30 tool, AlTiCrN coating, magnetron sputtering, microstructure, friction properties

中图分类号:

TG146

谭大庆, 胡韶华, 万元, 谭伟. YT30刀具表面磁控溅射AlTiCrN涂层的微观组织及摩擦性能[J]. 金属热处理, 2020, 45(11): 222-225.

Tan Daqing, Hu Shaohua, Wan Yuan, Tan Wei. Microstructure and friction properties of AlTiCrN coating prepared by magnetron sputtering on surface of YT30 tool[J]. Heat Treatment of Metals, 2020, 45(11): 222-225.

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YT30刀具表面磁控溅射AlTiCrN涂层的微观组织及摩擦性能

Microstructure and friction properties of AlTiCrN coating prepared by magnetron sputtering on surface of YT30 tool

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