%0 Journal Article
%T Effect of Carbonitriding on Endurance Life of Ball Bearing Produced from SAE 52100 Bearing Steels
%A Karthikeyan Rajan
%A Vinod Joshi
%A Arindam Ghosh
%J Journal of Surface Engineered Materials and Advanced Technology
%P 172-177
%@ 2161-489X
%D 2013
%I Scientific Research Publishing
%R 10.4236/jsemat.2013.33023
%X <p class=\"MsoNormal\">
	<span lang=\"EN-US\" style=\"font-family:Verdana;\">The present paper reports the unusual
enhancement of endurance life of ball bearings subjected to carbonitriding treat</span><span lang=\"EN-US\" style=\"font-family:Verdana;\">ment. The microstructure was
characterized by scanning electron microscopy and correlated with hardness and
X-ray diffraction analysis. Endurance tests at 90% reliability revealed that
the carbonitrided bearings exhibit nearly ten times more life than the
non-carbonitrided bearings. This is attributed to synergic combination of
retained austenitic,</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">fine
martensitic microstructure and ultrafine carbide precipitates obtained by
carbonitriding treatment.</span><span lang=\"EN-US\"><o:p></o:p></span> 
</p>
%K Carbonitriding
%K Retained Austenite
%K Martensite
%K Endurance Test
%K Bearing Steel
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=34218