| HAN Li,JIANG Wei.Study on the Laser Surface Strengthen Process of lCr18Ni9Ti[J],37(1):62-63,88 |
| Study on the Laser Surface Strengthen Process of lCr18Ni9Ti |
| Received:December 03, 2007 Revised:February 10, 2008 |
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| DOI： |
| KeyWord:Laser surface strengthening Nice crystal Austenite stainless steel |
| Author | Institution |
| HAN Li |
Department of Aeronautical Engineering of Qingdao Branch of Naval Aeronautical Engineering Academy, Qingda0 , China |
| JIANG Wei |
Department of Aeronautical Engineering of Qingdao Branch of Naval Aeronautical Engineering Academy, Qingda0 , China |
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| Abstract: |
| The laser surface strengthening technology was carried on the surface of austenite stainless steel lCr18Ni9Ti in order to enhance the degree of micro-hardness of stainless steel surface. The microstructure and the microhardness as well as the influence to the degree of micro-hardness by the craft parameter have been analyzed. The distribution curve fitting of degree of micro-hardness as well as the fitting result examination has been carried on. The result shows that the strengthened layers with tiny crystal grain and higher degree of micro-hardness than the substrate's are obtained. The highest degree of micro-hardness reaches 224HV. The degree of micro-hardness is higher along with bigger electric current and lower scanning velocity. |
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