Improved toughness of layered architecture TiAlN/CrN coatings for titanium high speed cutting | |
Department | 固体润滑国家重点实验室 |
Sui XD(隋旭东)1,2; Li, Guojian1; Jiang, Chenjie1; Wang, Kai1; Zhang, Yingjie3; Hao JY(郝俊英)2; Wang, Qiang1 | |
2018 | |
Source Publication | Ceramics International |
ISSN | 0272-8842 |
Volume | 44Issue:5Pages:5629-5635 |
Abstract | Fracture toughness is an important characteristic for coatings for high speed cutting of titanium. This study focuses on improving the fracture toughness of the coatings using a layered design method. TiAlN/CrN multilayer coatings with bilayer periods between 12 nm and 270 nm were prepared by reactive magnetron sputtering. XRD results show the multilayer coatings have face-centred cubic structures. When the bilayer period of multilayer coating decreases from 270 nm to 25 nm, the coating hardness decreases from 24.5 GPa to 18.1 GPa. Increased fracture toughness and adhesion strength of multilayer coatings are observed with decreasing bilayer periods. A maximum fracture toughness (KIC) of 3.6 MPa m1/2 and adhesion strength of 107 N were obtained with a 25 nm bilayer period. The inhibition of crack propagation is the main reason for the high fracture toughness values in multilayer coatings. However, when the bilayer period is decreased further (12 nm), the coating hardness begins to increase rapidly to 23.4 GPa, and the fracture toughness and adhesion strength begin to decrease. Titanium cutting results show that an improvement in cutting performance is obtained with a TiAlN/CrN_25 multilayer coating. |
Keyword | Layered Design Fracture Toughness Bilayer Period Titanium Cutting |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.ceramint.2017.12.210 |
Funding Organization | the National Science and Technology Major Project (2012ZX04003061) ; the Fundamental Research Funds for the Central Universities (Grant No. N140503003) |
Indexed By | SCI |
If | 3.057 |
Language | 英语 |
Funding Project | 空间润滑材料研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/23713 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Li, Guojian |
Affiliation | 1.Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110004, Liaoning, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 3.Northeastern Univ, Coll Sci, Shenyang 110004, Liaoning, Peoples R China |
Recommended Citation GB/T 7714 | Sui XD,Li, Guojian,Jiang, Chenjie,et al. Improved toughness of layered architecture TiAlN/CrN coatings for titanium high speed cutting[J]. Ceramics International,2018,44(5):5629-5635. |
APA | Sui XD.,Li, Guojian.,Jiang, Chenjie.,Wang, Kai.,Zhang, Yingjie.,...&Wang, Qiang.(2018).Improved toughness of layered architecture TiAlN/CrN coatings for titanium high speed cutting.Ceramics International,44(5),5629-5635. |
MLA | Sui XD,et al."Improved toughness of layered architecture TiAlN/CrN coatings for titanium high speed cutting".Ceramics International 44.5(2018):5629-5635. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
1-s2.0-S027288421732(1995KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment