IMPROVING THE SURFACE PROPERTY OF TC4 ALLOY BY LASER NITRIDING AND ITS MECHANISM
The mixing technology of laser and heated nitrogen was applied to improve the surface hardness of titanium alloy (TC4). The samples were nitrided with laser power density of 6.5×10 5W·cm −2, the scanning speed various from 100 to 500mm·min −1. The nitrogen gas was pre-heated to 300°C to accelerate t...
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| Veröffentlicht in: | Acta metallurgica sinica : English letters 2006-04, Vol.19 (2), p.151-156 |
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| creator | Yang, Y.L. Zhao, G.J. Zhang, D. Liu, C.S. |
| description | The mixing technology of laser and heated nitrogen was applied to improve the surface hardness of titanium alloy (TC4). The samples were nitrided with laser power density of 6.5×10
5W·cm
−2, the scanning speed various from 100 to 500mm·min
−1. The nitrogen gas was pre-heated to 300°C to accelerate the nitriding process. Some interested samples were tested with XRD method (X-ray diffraction) to analyze the composition of nitrides, and the surface hardness of HV was measured. The results show that TiN and Ti
2N were formed on the surface of Ti alloy with proper nitriding parameters, but TiN is the main composition. The surface hardness increased by three times, which is from the original value of 269 to 794kg·mm
−2. The mechanism of the mixing technology is considered mainly of the activation of nitrogen by laser power and the pre-heated process which accelerated the nitriding process. The nitridation process can be considered as six steps given in detail. The result by analyzing the mechanism of improving the surface property of TiAl alloy shows the improvement of surface property due to two factors: the first reason is the result of laser annealing, and the second one is the formation of TiN. |
| doi_str_mv | 10.1016/S1006-7191(06)60037-9 |
| format | Article |
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5W·cm
−2, the scanning speed various from 100 to 500mm·min
−1. The nitrogen gas was pre-heated to 300°C to accelerate the nitriding process. Some interested samples were tested with XRD method (X-ray diffraction) to analyze the composition of nitrides, and the surface hardness of HV was measured. The results show that TiN and Ti
2N were formed on the surface of Ti alloy with proper nitriding parameters, but TiN is the main composition. The surface hardness increased by three times, which is from the original value of 269 to 794kg·mm
−2. The mechanism of the mixing technology is considered mainly of the activation of nitrogen by laser power and the pre-heated process which accelerated the nitriding process. The nitridation process can be considered as six steps given in detail. The result by analyzing the mechanism of improving the surface property of TiAl alloy shows the improvement of surface property due to two factors: the first reason is the result of laser annealing, and the second one is the formation of TiN.</description><identifier>ISSN: 1006-7191</identifier><identifier>EISSN: 2194-1289</identifier><identifier>DOI: 10.1016/S1006-7191(06)60037-9</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>laser nitridation ; surface property ; Ti alloy</subject><ispartof>Acta metallurgica sinica : English letters, 2006-04, Vol.19 (2), p.151-156</ispartof><rights>2006 The Chinese Society for Metals</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2871-4447f418ebad3ed98a66b577f591e25cc16c2fbd305fd1917515f85ef1cf847f3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.wanfangdata.com.cn/images/PeriodicalImages/jsxb-e/jsxb-e.jpg</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Yang, Y.L.</creatorcontrib><creatorcontrib>Zhao, G.J.</creatorcontrib><creatorcontrib>Zhang, D.</creatorcontrib><creatorcontrib>Liu, C.S.</creatorcontrib><title>IMPROVING THE SURFACE PROPERTY OF TC4 ALLOY BY LASER NITRIDING AND ITS MECHANISM</title><title>Acta metallurgica sinica : English letters</title><description>The mixing technology of laser and heated nitrogen was applied to improve the surface hardness of titanium alloy (TC4). The samples were nitrided with laser power density of 6.5×10
5W·cm
−2, the scanning speed various from 100 to 500mm·min
−1. The nitrogen gas was pre-heated to 300°C to accelerate the nitriding process. Some interested samples were tested with XRD method (X-ray diffraction) to analyze the composition of nitrides, and the surface hardness of HV was measured. The results show that TiN and Ti
2N were formed on the surface of Ti alloy with proper nitriding parameters, but TiN is the main composition. The surface hardness increased by three times, which is from the original value of 269 to 794kg·mm
−2. The mechanism of the mixing technology is considered mainly of the activation of nitrogen by laser power and the pre-heated process which accelerated the nitriding process. The nitridation process can be considered as six steps given in detail. The result by analyzing the mechanism of improving the surface property of TiAl alloy shows the improvement of surface property due to two factors: the first reason is the result of laser annealing, and the second one is the formation of TiN.</description><subject>laser nitridation</subject><subject>surface property</subject><subject>Ti alloy</subject><issn>1006-7191</issn><issn>2194-1289</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkElPwzAQhS0EEmX5CUg-sRwCHidO4hMKIaWR0kVJQOrJSh0bpSpJiSnLv8eliCun0Yy-NzPvIXQG5BoI-DcFEOI7AXC4JP6VT4gbOHwPDShwzwEa8n00-EMO0ZExS9tRjwUDNEvHs3z6lE4ecDlKcPGYD6M4wXY2S_JyjqdDXMYejrJsOsd3c5xFRZLjSVrm6f1WFE3ucVoWeJzEo2iSFuMTdKCrlVGnv_UYPQ6TMh452fQhjaPMkTQMwPE8L9AehGpR1a6qeVj5_oIFgWYcFGVSgi-pXtQuYbq2bwcMmA6Z0iB1aKXuMbrY7f2oWl21z2LZbfrWXhRL87kQilqLhBIAS57vyHXfvW6UeRMvjZFqtapa1W2MoNzlIQXXgmwHyr4zpldarPvmpeq_BBCxTVr8JC22MQpbf5IW3Opudzpl_b43qhdGNqqVqm56Jd9E3TX_bPgGKWR8zA</recordid><startdate>20060401</startdate><enddate>20060401</enddate><creator>Yang, Y.L.</creator><creator>Zhao, G.J.</creator><creator>Zhang, D.</creator><creator>Liu, C.S.</creator><general>Elsevier B.V</general><general>College of Science, Northeastern University, Shenyang 110004, China%College of Material and Metallurgy, Northeastern University,Shenyang 110004, China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20060401</creationdate><title>IMPROVING THE SURFACE PROPERTY OF TC4 ALLOY BY LASER NITRIDING AND ITS MECHANISM</title><author>Yang, Y.L. ; Zhao, G.J. ; Zhang, D. ; Liu, C.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2871-4447f418ebad3ed98a66b577f591e25cc16c2fbd305fd1917515f85ef1cf847f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>laser nitridation</topic><topic>surface property</topic><topic>Ti alloy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Y.L.</creatorcontrib><creatorcontrib>Zhao, G.J.</creatorcontrib><creatorcontrib>Zhang, D.</creatorcontrib><creatorcontrib>Liu, C.S.</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Acta metallurgica sinica : English letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Y.L.</au><au>Zhao, G.J.</au><au>Zhang, D.</au><au>Liu, C.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>IMPROVING THE SURFACE PROPERTY OF TC4 ALLOY BY LASER NITRIDING AND ITS MECHANISM</atitle><jtitle>Acta metallurgica sinica : English letters</jtitle><date>2006-04-01</date><risdate>2006</risdate><volume>19</volume><issue>2</issue><spage>151</spage><epage>156</epage><pages>151-156</pages><issn>1006-7191</issn><eissn>2194-1289</eissn><abstract>The mixing technology of laser and heated nitrogen was applied to improve the surface hardness of titanium alloy (TC4). The samples were nitrided with laser power density of 6.5×10
5W·cm
−2, the scanning speed various from 100 to 500mm·min
−1. The nitrogen gas was pre-heated to 300°C to accelerate the nitriding process. Some interested samples were tested with XRD method (X-ray diffraction) to analyze the composition of nitrides, and the surface hardness of HV was measured. The results show that TiN and Ti
2N were formed on the surface of Ti alloy with proper nitriding parameters, but TiN is the main composition. The surface hardness increased by three times, which is from the original value of 269 to 794kg·mm
−2. The mechanism of the mixing technology is considered mainly of the activation of nitrogen by laser power and the pre-heated process which accelerated the nitriding process. The nitridation process can be considered as six steps given in detail. The result by analyzing the mechanism of improving the surface property of TiAl alloy shows the improvement of surface property due to two factors: the first reason is the result of laser annealing, and the second one is the formation of TiN.</abstract><pub>Elsevier B.V</pub><doi>10.1016/S1006-7191(06)60037-9</doi><tpages>6</tpages></addata></record> |
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| issn | 1006-7191 2194-1289 |
| language | eng |
| recordid | cdi_wanfang_journals_jsxb_e200602011 |
| source | Alma/SFX Local Collection |
| subjects | laser nitridation surface property Ti alloy |
| title | IMPROVING THE SURFACE PROPERTY OF TC4 ALLOY BY LASER NITRIDING AND ITS MECHANISM |
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