CrAlON CAE-PVD coatings for oxidation and wear protection of TZM alloys in FAST sintering applications

被引：11

作者：

Almandoz, Eluxka ^{[1
]}

Fernandez de Ara, Jonathan ^{[1
]}

Martinez de Bujanda, Javier ^{[1
,2
]}

Fernandez Palacio, Jose ^{[1
]}

Jose Rodriguez, Rafael ^{[3
,4
]}

Zhang, Zhenxue ^{[5
]}

Dong, Hanshan ^{[5
]}

Qin, Yi ^{[6
]}

Garcia Fuentes, Gonzalo ^{[1
]}

机构：

[1] Asociac Ind Navarra, Carretera Pamplona 1, Cordovilla 31191, Spain

[2] Univ Basque Country, Escuela Tecn Super Ingn, Alameda Urquijo S-N, Bilbao 48013, Spain

[3] Univ Publ Navarra, Campus Arrosadia S-N, Pamplona 31006, Spain

[4] Inst Adv Mat INAMAT, Campus Arrosadia S-N, Pamplona 31006, Spain

[5] Univ Birmingham, Sch Met & Mat, Birmingham B15 2T1, W Midlands, England

[6] Strathclyde Univ, Dept Design Mfg & Engn Management, Glasgow G1 1XJ, Lanark, Scotland

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2018年 / 208卷

关键词：

Cathodic arc evaporation; Oxide coating; Wear resistance; Hardness; Sintering; MECHANICAL-PROPERTIES; THERMAL-STABILITY; ARC EVAPORATION; BEHAVIOR; CORUNDUM; MICROSTRUCTURE; PHASE; TEMPERATURE; RESISTANCE; HARDNESS;

D O I：

10.1016/j.matchemphys.2018.01.056

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work CrAIO and CrAlO/CrAIN multilayers deposited by cathodic arc evaporation are evaluated as protective films in metal and ceramic powder FAST sintering tool dies fabricated in titanium-zirconium molybdenum allows (TZM). The films have been characterised in terms of their composition, microstructure, mechanical properties and thermal stability in air at high temperatures between 800 degrees C and 1100 degrees C; in addition the tribological performance has been analysed at room temperature and at 400 degrees C. The crystalline structure and composition of the CrAlO based coatings are compatible with the formation of a mixture of alpha-corundum and a cubic fcc (Cr,Al)(2)O-3. The crystalline structure of the multilayer is, on the other hand, dominated by the cubic fcc lattice plane reflections of the CrAIN. The deposited specimens have high hardness, between 25 and 30 GPa, which are stable even after annealing at 1000 degrees C. Even more, the multilayer coating also exhibited good mechanical stability at 1100 degrees C. The multilayer coating also exhibited an excellent behaviour against wear at 400 degrees C. Sintering trials using coated TZM dies have been carried out using Ti90Sn10 and Al2O3 high energy ball milled powders. The experimental results show that the oxide based coating formulations are potentially able to protect the tools from wear, sticking and oxidation of their surfaces. This may allow the use of TZM material as an alternative to other substrates such as graphite. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：189 / 197

页数：9

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