Investigation into the influence of laser melting on the sulphide inclusions in AISI 416 stainless steel
► Laser surface treatment reduces sulphide inclusion size from over 2 μm to below 0.5 μm. ► Total volume of sulphur in stainless steel not reduced by laser surface treatment. ► Pitting potential in 500 ppm chloride increases by more than 200 mV. ► Inverse linear relationship between pitting potentia...
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Veröffentlicht in: | Corrosion science 2011-12, Vol.53 (12), p.3950-3955 |
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creator | Tan, Yong Teck Wijesinghe, T.L. Sudesh L. Ng, Gary Ka Lai Blackwood, Daniel J. |
description | ► Laser surface treatment reduces sulphide inclusion size from over 2
μm to below 0.5
μm. ► Total volume of sulphur in stainless steel not reduced by laser surface treatment. ► Pitting potential in 500
ppm chloride increases by more than 200
mV. ► Inverse linear relationship between pitting potential and size sulphide inclusions. ► No Influence of Ar or N
2 shielding gas on pitting behavior.
AISI 416 is a high sulphur martensitic stainless steel with elliptical shaped sulphide inclusions over 2
μm in length. After laser melting the sulphide inclusions became spherical and reduced in size to below 0.5
μm in diameter. SEM investigations showed that the total number of inclusions increased dramatically and it was calculated that the total volume of sulphur in the stainless steel had not changed during the laser treatment. The pitting potential was increased by over 200
mV with an inverse linear dependency on the average inclusion size. The frequency of metastable pitting events decreased by a factor of 100. |
doi_str_mv | 10.1016/j.corsci.2011.07.042 |
format | Article |
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μm to below 0.5
μm. ► Total volume of sulphur in stainless steel not reduced by laser surface treatment. ► Pitting potential in 500
ppm chloride increases by more than 200
mV. ► Inverse linear relationship between pitting potential and size sulphide inclusions. ► No Influence of Ar or N
2 shielding gas on pitting behavior.
AISI 416 is a high sulphur martensitic stainless steel with elliptical shaped sulphide inclusions over 2
μm in length. After laser melting the sulphide inclusions became spherical and reduced in size to below 0.5
μm in diameter. SEM investigations showed that the total number of inclusions increased dramatically and it was calculated that the total volume of sulphur in the stainless steel had not changed during the laser treatment. The pitting potential was increased by over 200
mV with an inverse linear dependency on the average inclusion size. The frequency of metastable pitting events decreased by a factor of 100.</description><identifier>ISSN: 0010-938X</identifier><identifier>EISSN: 1879-0496</identifier><identifier>DOI: 10.1016/j.corsci.2011.07.042</identifier><identifier>CODEN: CRRSAA</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>A. Stainless steel ; Applied sciences ; B. Polarization ; B. Potential static ; B. SEM ; C. Pitting corrosion ; C. Welding ; Corrosion ; Corrosion environments ; Exact sciences and technology ; Inclusions ; Joining, thermal cutting: metallurgical aspects ; Lasers ; Melting ; Metals. Metallurgy ; Pitting (corrosion) ; Production techniques ; Stainless steels ; Sulfides ; Sulfur ; Sulphur ; Surface treatment ; Welding</subject><ispartof>Corrosion science, 2011-12, Vol.53 (12), p.3950-3955</ispartof><rights>2011 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-77ac493baca0def5cd4ae9f638eb025dd754802dce52d71bd60d992a56198273</citedby><cites>FETCH-LOGICAL-c368t-77ac493baca0def5cd4ae9f638eb025dd754802dce52d71bd60d992a56198273</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.corsci.2011.07.042$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3552,27931,27932,46002</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24624017$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Tan, Yong Teck</creatorcontrib><creatorcontrib>Wijesinghe, T.L. Sudesh L.</creatorcontrib><creatorcontrib>Ng, Gary Ka Lai</creatorcontrib><creatorcontrib>Blackwood, Daniel J.</creatorcontrib><title>Investigation into the influence of laser melting on the sulphide inclusions in AISI 416 stainless steel</title><title>Corrosion science</title><description>► Laser surface treatment reduces sulphide inclusion size from over 2
μm to below 0.5
μm. ► Total volume of sulphur in stainless steel not reduced by laser surface treatment. ► Pitting potential in 500
ppm chloride increases by more than 200
mV. ► Inverse linear relationship between pitting potential and size sulphide inclusions. ► No Influence of Ar or N
2 shielding gas on pitting behavior.
AISI 416 is a high sulphur martensitic stainless steel with elliptical shaped sulphide inclusions over 2
μm in length. After laser melting the sulphide inclusions became spherical and reduced in size to below 0.5
μm in diameter. SEM investigations showed that the total number of inclusions increased dramatically and it was calculated that the total volume of sulphur in the stainless steel had not changed during the laser treatment. The pitting potential was increased by over 200
mV with an inverse linear dependency on the average inclusion size. The frequency of metastable pitting events decreased by a factor of 100.</description><subject>A. Stainless steel</subject><subject>Applied sciences</subject><subject>B. Polarization</subject><subject>B. Potential static</subject><subject>B. SEM</subject><subject>C. Pitting corrosion</subject><subject>C. Welding</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Exact sciences and technology</subject><subject>Inclusions</subject><subject>Joining, thermal cutting: metallurgical aspects</subject><subject>Lasers</subject><subject>Melting</subject><subject>Metals. Metallurgy</subject><subject>Pitting (corrosion)</subject><subject>Production techniques</subject><subject>Stainless steels</subject><subject>Sulfides</subject><subject>Sulfur</subject><subject>Sulphur</subject><subject>Surface treatment</subject><subject>Welding</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kD2P1DAQhi0EEsvBP6Bwg6gSxo5jxw3S6cTHSidRcAWd5bUnt155k8WTnMS_x9GeKKn8Fs8743kYey-gFSD0p1Mb5kIhtRKEaMG0oOQLthODsQ0oq1-yHYCAxnbDr9fsDdEJACoLO3bcT09IS3r0S5onnqZl5ssRaxjzilNAPo88e8LCz5iXND3yim0ErflyTHFDQ16ptqlGfrv_uedKaE6LT1NGopoQ81v2avSZ8N3ze8Mevn55uPve3P_4tr-7vW9Cp4elMcYHZbuDDx4ijn2IyqMddTfgAWQfo-nVADIG7GU04hA1RGul77WwgzTdDft4HXsp8--1XubOiQLm7CecV3JW6k6a3qhKqisZykxUcHSXks6-_HEC3KbVndxVq9u0OjCuaq21D88LPAWfx-KnkOhfVyotFYjtI5-vHNZjnxIWVydtQmMqGBYX5_T_RX8BMZiQxQ</recordid><startdate>20111201</startdate><enddate>20111201</enddate><creator>Tan, Yong Teck</creator><creator>Wijesinghe, T.L. Sudesh L.</creator><creator>Ng, Gary Ka Lai</creator><creator>Blackwood, Daniel J.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20111201</creationdate><title>Investigation into the influence of laser melting on the sulphide inclusions in AISI 416 stainless steel</title><author>Tan, Yong Teck ; Wijesinghe, T.L. Sudesh L. ; Ng, Gary Ka Lai ; Blackwood, Daniel J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-77ac493baca0def5cd4ae9f638eb025dd754802dce52d71bd60d992a56198273</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>A. Stainless steel</topic><topic>Applied sciences</topic><topic>B. Polarization</topic><topic>B. Potential static</topic><topic>B. SEM</topic><topic>C. Pitting corrosion</topic><topic>C. Welding</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Exact sciences and technology</topic><topic>Inclusions</topic><topic>Joining, thermal cutting: metallurgical aspects</topic><topic>Lasers</topic><topic>Melting</topic><topic>Metals. Metallurgy</topic><topic>Pitting (corrosion)</topic><topic>Production techniques</topic><topic>Stainless steels</topic><topic>Sulfides</topic><topic>Sulfur</topic><topic>Sulphur</topic><topic>Surface treatment</topic><topic>Welding</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tan, Yong Teck</creatorcontrib><creatorcontrib>Wijesinghe, T.L. Sudesh L.</creatorcontrib><creatorcontrib>Ng, Gary Ka Lai</creatorcontrib><creatorcontrib>Blackwood, Daniel J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Corrosion science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tan, Yong Teck</au><au>Wijesinghe, T.L. Sudesh L.</au><au>Ng, Gary Ka Lai</au><au>Blackwood, Daniel J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigation into the influence of laser melting on the sulphide inclusions in AISI 416 stainless steel</atitle><jtitle>Corrosion science</jtitle><date>2011-12-01</date><risdate>2011</risdate><volume>53</volume><issue>12</issue><spage>3950</spage><epage>3955</epage><pages>3950-3955</pages><issn>0010-938X</issn><eissn>1879-0496</eissn><coden>CRRSAA</coden><abstract>► Laser surface treatment reduces sulphide inclusion size from over 2
μm to below 0.5
μm. ► Total volume of sulphur in stainless steel not reduced by laser surface treatment. ► Pitting potential in 500
ppm chloride increases by more than 200
mV. ► Inverse linear relationship between pitting potential and size sulphide inclusions. ► No Influence of Ar or N
2 shielding gas on pitting behavior.
AISI 416 is a high sulphur martensitic stainless steel with elliptical shaped sulphide inclusions over 2
μm in length. After laser melting the sulphide inclusions became spherical and reduced in size to below 0.5
μm in diameter. SEM investigations showed that the total number of inclusions increased dramatically and it was calculated that the total volume of sulphur in the stainless steel had not changed during the laser treatment. The pitting potential was increased by over 200
mV with an inverse linear dependency on the average inclusion size. The frequency of metastable pitting events decreased by a factor of 100.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2011.07.042</doi><tpages>6</tpages></addata></record> |
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subjects | A. Stainless steel Applied sciences B. Polarization B. Potential static B. SEM C. Pitting corrosion C. Welding Corrosion Corrosion environments Exact sciences and technology Inclusions Joining, thermal cutting: metallurgical aspects Lasers Melting Metals. Metallurgy Pitting (corrosion) Production techniques Stainless steels Sulfides Sulfur Sulphur Surface treatment Welding |
title | Investigation into the influence of laser melting on the sulphide inclusions in AISI 416 stainless steel |
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