کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1662002 | 1008434 | 2007 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Processing, microstructure, properties and wear behavior of in situ synthesized TiB2 and TiC thick films on steel substrates Processing, microstructure, properties and wear behavior of in situ synthesized TiB2 and TiC thick films on steel substrates](/preview/png/1662002.png)
TiB2 and TiC reinforced Fe matrix thick films (2 mm thickness) were produced through the synthesis reaction from Ti, C and FeB powders with varying porosity on the steel substrates. Powder technology was used as a processing method. The films and the substrates were sintered in a single step. TiB2, TiC and Fe were detected in the films by X-ray diffraction analysis. The fact that no other reaction product was detected revealed the thermal stability of TiB2 and TiC. The formation of secondary reaction products was inhibited during the reactive sintering. The films showed maximum strength of 163–466 MPa when sintered separately at 1350 °C. The strength of the films varied with their porosity. The films showed considerable bonding strength with the steel substrates. The delamination of the films from the steel substrates was observed at stress values from 454–781 MPa. The microstructure, fracture and delaminated surface morphologies were studied. The wear resistance against hardened high speed steel was studied in reciprocating sliding tests. The wear mechanisms were discussed by means of microscopical observation on the worn surfaces.
Journal: Surface and Coatings Technology - Volume 201, Issue 24, 15 October 2007, Pages 9603–9609