Enhanced Surface Mechanical Properties of Cr12MoV Using Ultrasonic Surface Rolling Process and Deep Cryogenic Treatment

Ultrasonic surface rolling process (USRP) combined with deep cryogenic treatment (USRP+DCT) was applied on quenched and tempered Cr12MoV. The results indicated that USRP and USRP+DCT could significantly improve the surface mechanical properties, leading to smaller surface roughness and smoother morp...

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Veröffentlicht in:	Solid state phenomena 2018-08, Vol.279, p.143-147
Hauptverfasser:	Zhao, Ying Li, Chang, Jin Bao, Ren, Shuai, Xu, Zi Zhen, Fan, Ming Qiang, Xin, Rui Shan, Zhang, Yun Fei, Xue, Feng
Format:	Artikel
Sprache:	eng
Schlagworte:	Cryogenic engineering Cryogenic treatment Mechanical properties Skin pass rolling
Online-Zugang:	Volltext
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Zusammenfassung:	Ultrasonic surface rolling process (USRP) combined with deep cryogenic treatment (USRP+DCT) was applied on quenched and tempered Cr12MoV. The results indicated that USRP and USRP+DCT could significantly improve the surface mechanical properties, leading to smaller surface roughness and smoother morphology with less cracks and defects. Test of microhardness showed that the hardness increase of USRP and USRP+DCT were 16.4% and 23.6%, respectively. In addition, the wear resistance was improved by USRP and USRP+DCT. Compared with USRP, USRP+DCT can further improve the surface mechanical properties of Cr12MoV.
ISSN:	1012-0394 1662-9779 1662-9779
DOI:	10.4028/www.scientific.net/SSP.279.143