2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 6: Coatings, Cement, Rare Earth & Ferro-alloys

Editors:Kongoli F, Yildirim H, Hainer S, Hofmann K, Proske T, Graubner C.A., Albert B
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:200 pages
ISBN:978-1-987820-29-4
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2015_Volume
< CD shopping page

    Tribological Properties of the Fe-Al-Cr Alloyed Layer by Double Glow Plasma Surface Metallurgy

    Xixi Luo1; Zhengjun Yao1;
    1NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, Nanjing, China;
    Type of Paper: Regular
    Id Paper: 143
    Topic: 19

    Abstract:

    Fe-Al-Cr alloyed layer was deposited onto the surface of Q235 low carbon steel via double glow plasma surface metallurgy technology to improve its wear resistance. The microstructures, phase constitutes, composition distributions and microhardness were determined.The tribological properties of Fe-Al-Cr alloyed layer were tested on a ball-on-disk tribometer by rubbing against GCr15 and silicon nitride (Si3N4) balls at room temperature and high temperature (i.e. 250AC and 450AC), respectively. The results indicated that the alloyed layer was 25 Am in thickness, which was homogeneous and compact, and it showed metallurgically adhered to the substrate. The main phases of the alloyed layer were Fe2AlCr, Fe3Al, FeAl, Fe(Cr) sosoloid, Cr23C6 and I-Fe(Al).According to the frictional wear tests, the frictional coefficientand specific wear rate of the Fe-Al-Cr alloyed layer were all lower than those of the substrate under room and high temperature. The special wear rate of treated specimen at 450AC was 2.524A10-4mm3 N-1 m-1, which was only 45.2% of the untreated specimen.

    Keywords:

    Alloys; Coatings; HighTemperature; Steel; Surface; Technology;

    Cite this article as:

    Luo X and Yao Z. Tribological Properties of the Fe-Al-Cr Alloyed Layer by Double Glow Plasma Surface Metallurgy. In: Kongoli F, Yildirim H, Hainer S, Hofmann K, Proske T, Graubner C.A., Albert B, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 6: Coatings, Cement, Rare Earth & Ferro-alloys. Volume 6. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 147-148.