REVIEW OF RESEARCH WORK ON Ti-BASED COMPOSITE COATINGS
The service life of industrial components is limited predominantly by Chemical corrosion/ mechanical wear. The project is concerned with the investigation of the capability of Ti(Al,O)/Al2O3 coatings to improve the service life of tool steel (H13) used for dies in aluminium high pressure die casting.This paper gives a general review on the research work conducted at the University of Waikato on producing and evaluating the titanium/alumina based composite coatings. The powder feedstocks for making the composite coatings were produced by high energy mechanical milling of a mixture of Al and TiO2 powders in two different molar ratios followed by a thermal reaction process. The feedstocks were then thermally sprayed using a high velocity air-fuel (HVAF) technique on H13 steel substrates to produce a Ti(Al,O)/Al2O3 composite coatings. The performance of the coating was assessed in terms of thermal shock resistance and reaction kinetics with molten aluminium. The composite powders and coatings were characterized using scanning electron microscopy (SEM), optical microscopy and X-ray diffractometry (XRD).
Mechanical milling thermal spraying composite coatings wear friction service life HVAF
BRIAN GABBITAS ASMA SALMAN DELIANG ZHANG PENG CAO
Department of Engineering, University of Waikato, Private Bag 3105, Hamilton, 3240, New Zealand
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1707-1712
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）