Nanomultilayer gradation strategy to improve mechanical properties of TiSiN/AlCrN hard coatings

级配 材料科学 复合材料 法律工程学 工程类 计算机科学 人工智能
作者
Qizhong Li,Fazhen Liu,Mai Yang,Tenghua Gao,Baifeng Ji,Song Zhang,Rong Tu,Lianmeng Zhang
出处
期刊:Journal of vacuum science & technology [American Institute of Physics]
卷期号:42 (5) 被引量:6
标识
DOI:10.1116/6.0003763
摘要

The structure design and optimization of multilayer coatings, which are utilized to surmount the trade-off between hardness and toughness, has been a current hot topic in the field of hard ceramic coatings. Herein, multi-layered TiSiN/AlCrN coatings with a constant and gradient sublayer thickness (Λ, modulation periods) ranging from 20 to 3.8 nm were prepared by the cathodic arc ion plating. The microstructure, mechanical properties, residual stress, and fracture toughness of four gradient structures were investigated systematically. All coatings exhibit a typical FCC crystal structure. In the coating with a monotonous decrease of modulation period (single gradient periodic decreasing structure, G2), the interface between the TiSiN layer and the AlCrN layer transformed from a partially semi-coherent interface at the bottom layers of Λ = 20 nm, to a fully coherent interface at the top layers of Λ = 3.8 nm. The coating with dual-gradient structures (modulation period increases first and then decreases, V2) demonstrated the highest hardness (37.6 ± 1.0 GPa), H/E* and H3/E*2 ratios (0.087 and 0.28 GPa), and bonding strength (75.3 N), as well as lowest friction coefficient (0.34) and wear rate (6.7 × 10−6 mm3/N m). The remarkable resistance to damage and toughness displayed by the V2 structure could be ascribed to its intrinsic capacity for effectively alleviating stress concentration and accommodating incompatibilities during the plastic deformation process. This work offers insights into employing gradient architecture design to enhance the strength and toughness of coatings.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
丘比特应助lingerzn采纳,获得30
刚刚
刚刚
1秒前
1秒前
2秒前
2秒前
递年发布了新的文献求助10
2秒前
3秒前
molihuakai应助小橘子采纳,获得10
4秒前
4秒前
xx发布了新的文献求助10
4秒前
熠熠生辉发布了新的文献求助10
5秒前
zanoe完成签到,获得积分10
5秒前
Yangshu发布了新的文献求助10
6秒前
孤独的问柳完成签到,获得积分10
6秒前
欢呼宛亦发布了新的文献求助10
6秒前
陈瑾初完成签到,获得积分10
7秒前
liugm发布了新的文献求助10
7秒前
传奇3应助己凡采纳,获得10
7秒前
sirwang发布了新的文献求助10
8秒前
eleven发布了新的文献求助10
8秒前
乐观小蕊完成签到 ,获得积分10
9秒前
狮子的猫完成签到,获得积分10
9秒前
9秒前
Alan完成签到,获得积分10
10秒前
丘比特应助无辜访彤采纳,获得10
10秒前
10秒前
天天快乐应助科研通管家采纳,获得10
10秒前
英姑应助科研通管家采纳,获得10
11秒前
工藤应助科研通管家采纳,获得10
11秒前
Venus完成签到,获得积分10
11秒前
情怀应助科研通管家采纳,获得10
11秒前
NexusExplorer应助科研通管家采纳,获得10
11秒前
wanci应助迷路的汉堡采纳,获得10
11秒前
Nexus应助科研通管家采纳,获得10
11秒前
小马甲应助科研通管家采纳,获得10
11秒前
小二郎应助科研通管家采纳,获得10
11秒前
11秒前
爆米花应助科研通管家采纳,获得10
11秒前
闪闪的秋天完成签到,获得积分0
11秒前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
The Graphene Handbook (2019 Edition) 800
Adhesion Science: Principles & Practice 800
Signals, Systems, and Signal Processing 610
IEST-RP-CC018: Cleanroom Cleaning and Sanitization: Operating and Monitoring Procedures 600
Fundamentals of Pharmaceutical and Biologics Regulations: A Global Perspective, Second Edition 600
How to Design, Write and Publish Qualitative Research for Insight and Impact 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 纳米技术 工程类 有机化学 化学工程 生物化学 计算机科学 物理 内科学 复合材料 催化作用 物理化学 光电子学 电极 细胞生物学 基因 无机化学
热门帖子
关注 科研通微信公众号,转发送积分 6533670
求助须知:如何正确求助?哪些是违规求助? 8326956
关于积分的说明 17835721
捐赠科研通 5635139
什么是DOI,文献DOI怎么找? 2934023
邀请新用户注册赠送积分活动 1910294
关于科研通互助平台的介绍 1768986