%0 Journal Article
%T TiC/Fe cermet coating by plasma cladding using asphalt as carbonaceous precursor<br>
%A Liu Junbo
%A <br>
%J 自然科学进展
%D 2008
%I 
%X A new Ti-Fe-C compound powder for plasma cladding was prepared by heating a mixture powder of ferrotitanium and asphalt pyrolyzed as carbonaceous precursor. The carbon by the pyrolysis of the asphalt acts as a reactive constituent as well as a binder in the compound powder. TiC/Fe cermet coatings were prepared by plasma cladding with the compound powder. Results show that the Ti-Fe-C compound powder has a very tight structure, which can avoid the problem that reactive constituent particles are separated during cladding. The TiC/Fe cermet coating presents a typical morphology of plasma cladding coatings with two different laminated layers: one is the composite layers in which the round fine TiC particles (<500nm) are dispersed within a Fe matrix, the other is the paragentic layers of TiC and Ti2O3. The coating shows high hardness and excellent wear resistance. The surface hardness of the coating is 68±5(HR30N). In the same fretting conditions, the wear area of Ni60 coating is about 11 times as much as the TiC/Fe cermet coating.
%K plasma cladding
%K TiC/Fe cermet coating
%K precursor
%K microstructure
%K wear resistance<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=504AF8C1E5476CA7C4EC9DF6FEAC14AC&aid=668153DA7122CE37763D707E6F24B0C9&yid=67289AFF6305E306&vid=13553B2D12F347E8&iid=E158A972A605785F&sid=C66DE7562B0326E2&eid=B1989ED92BA7E896&journal_id=1002-008X&journal_name=自然科学进展&referenced_num=0&reference_num=0