EFFECTS OF ULTRASONIC NANO-CRYSTAL SURFACE MODIFICATION ON THE MICROSTRUCTURE AND PROPERTIES OF 304 AUSTENITIC STAINLESS STEEL

被引：0
作者：
Ye, Chang [1 ]
Telang, Abhishek [2 ]
Gill, Amrinder S. [2 ]
Suslov, Sergey [3 ]
Zhou, Zhong [4 ]
Qian, Dong [4 ]
Mannava, Seetha R. [2 ]
Vasudevan, Vijay K. [2 ]
机构：
[1] Univ Akron, Dept Mech Engn, Akron, OH 44325 USA
[2] Univ Cincinnati, Dept Mech & Mat Engn, Cincinnati, OH USA
[3] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA
[4] Univ Texas Dallas, Dept Mech Engn, Richardson, TX 75083 USA
来源：
PROCEEDINGS OF THE ASME 9TH INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE, 2014, VOL 1 | 2014年
关键词：
LOW-CARBON STEEL; MECHANICAL-PROPERTIES; STRAIN-RATE; NANOCRYSTALLIZATION; DUCTILITY; STRENGTH; LAYER;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, the effects of Ultrasonic Nano-crystal Surface Modification (UNSM) on the microstructure changes and the mechanical properties of austenitic stainless steel 304 were studied. Due to the dynamic impacts induced by the multiple strikes during UNSM, surface nanocrystallization and transformation to martensite has been achieved. The work-hardened surface layers (3.5 times the original hardness) lead to significant improvement in the mechanical properties as measured by nano-indentation and tensile test. The results demonstrate that UNSM is a powerful surface processing technique that can improve component mechanical properties and performance.
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页数：8
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