Study of the Lubrication Mechanism of Thin Film Lubricated Concentrated Steel Contacts. The Influence of Pre-Treatment of the Steel on the Load Carrying Capacity
The effect of the thermochemical surface treatments carburizing, ion-nitriding and liquid-nitriding on the load carrying capacity at high speed (4 m/s) of sliding crossed cylinders of steel, thin film lubricated with a marine diesel engine oil of 60 C, is described for three values of running-in dis...
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| creator | Begelinger,A Gee,A W J de |
| description | The effect of the thermochemical surface treatments carburizing, ion-nitriding and liquid-nitriding on the load carrying capacity at high speed (4 m/s) of sliding crossed cylinders of steel, thin film lubricated with a marine diesel engine oil of 60 C, is described for three values of running-in distance, namely 0 m, 30 m and 300 m; running-in being performed at a speed of 0.1 m/s. It is shown that when using untreated surfaces of ball bearing steel 100 Cr 61), carburized surfaces or ion-nitrided surfaces, loading in excess of a critical load value FNc causes a transition from partial elastohydrodynamic lubrication to unlubricated contact (scuffing regime). When using liquid-nitrided surfaces, loading in excess of FNc leads to a transition from partial EHD lubrication of boundary lubrication. This shows that liquid-nitriding considerably increases the upper limit of the temperature range in which boundary lubrication is possible. |
| format | Report |
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The Influence of Pre-Treatment of the Steel on the Load Carrying Capacity</title><source>DTIC Technical Reports</source><creator>Begelinger,A ; Gee,A W J de</creator><creatorcontrib>Begelinger,A ; Gee,A W J de ; METAALINSTITUUT TNO APELDOORN (NETHERLANDS) DEPT OF SURFACE TREATMENT AND TRIBOLOGY</creatorcontrib><description>The effect of the thermochemical surface treatments carburizing, ion-nitriding and liquid-nitriding on the load carrying capacity at high speed (4 m/s) of sliding crossed cylinders of steel, thin film lubricated with a marine diesel engine oil of 60 C, is described for three values of running-in distance, namely 0 m, 30 m and 300 m; running-in being performed at a speed of 0.1 m/s. It is shown that when using untreated surfaces of ball bearing steel 100 Cr 61), carburized surfaces or ion-nitrided surfaces, loading in excess of a critical load value FNc causes a transition from partial elastohydrodynamic lubrication to unlubricated contact (scuffing regime). When using liquid-nitrided surfaces, loading in excess of FNc leads to a transition from partial EHD lubrication of boundary lubrication. This shows that liquid-nitriding considerably increases the upper limit of the temperature range in which boundary lubrication is possible.</description><language>eng</language><subject>Carburizing ; Loads(Forces) ; Lubricants and Hydraulic Fluids ; Lubricating films ; Lubrication ; Machinery and Tools ; Nitrides ; Sliding contacts ; Sliding friction ; Steel ; Surfaces ; Test and evaluation ; Thermochemistry</subject><creationdate>1983</creationdate><rights>APPROVED FOR PUBLIC RELEASE</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,780,885,27567,27568</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/ADA135067$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Begelinger,A</creatorcontrib><creatorcontrib>Gee,A W J de</creatorcontrib><creatorcontrib>METAALINSTITUUT TNO APELDOORN (NETHERLANDS) DEPT OF SURFACE TREATMENT AND TRIBOLOGY</creatorcontrib><title>Study of the Lubrication Mechanism of Thin Film Lubricated Concentrated Steel Contacts. The Influence of Pre-Treatment of the Steel on the Load Carrying Capacity</title><description>The effect of the thermochemical surface treatments carburizing, ion-nitriding and liquid-nitriding on the load carrying capacity at high speed (4 m/s) of sliding crossed cylinders of steel, thin film lubricated with a marine diesel engine oil of 60 C, is described for three values of running-in distance, namely 0 m, 30 m and 300 m; running-in being performed at a speed of 0.1 m/s. It is shown that when using untreated surfaces of ball bearing steel 100 Cr 61), carburized surfaces or ion-nitrided surfaces, loading in excess of a critical load value FNc causes a transition from partial elastohydrodynamic lubrication to unlubricated contact (scuffing regime). When using liquid-nitrided surfaces, loading in excess of FNc leads to a transition from partial EHD lubrication of boundary lubrication. This shows that liquid-nitriding considerably increases the upper limit of the temperature range in which boundary lubrication is possible.</description><subject>Carburizing</subject><subject>Loads(Forces)</subject><subject>Lubricants and Hydraulic Fluids</subject><subject>Lubricating films</subject><subject>Lubrication</subject><subject>Machinery and Tools</subject><subject>Nitrides</subject><subject>Sliding contacts</subject><subject>Sliding friction</subject><subject>Steel</subject><subject>Surfaces</subject><subject>Test and evaluation</subject><subject>Thermochemistry</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1983</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNqFjT0OgkAQhWksjHoDi70ARkPUmqBEE01MoDfjMsgky6xZhoLjeFMX_Gmt5ue9771x8MykLTplSyUVqlN7c6RByLI6o66Aqal7Ma-IVUqm_lmwUIlljSxuODJBNP1LQEuz8ASqI5emRW_qIy4Ow9whSO2Zb-Gb8m1DuwUfCs51xHe_PECTdNNgVIJpcPaZk2Ce7vPkEBZC-toIMco13sWraL3cbKM_8gsNmFC4</recordid><startdate>198309</startdate><enddate>198309</enddate><creator>Begelinger,A</creator><creator>Gee,A W J de</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>198309</creationdate><title>Study of the Lubrication Mechanism of Thin Film Lubricated Concentrated Steel Contacts. The Influence of Pre-Treatment of the Steel on the Load Carrying Capacity</title><author>Begelinger,A ; Gee,A W J de</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_ADA1350673</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1983</creationdate><topic>Carburizing</topic><topic>Loads(Forces)</topic><topic>Lubricants and Hydraulic Fluids</topic><topic>Lubricating films</topic><topic>Lubrication</topic><topic>Machinery and Tools</topic><topic>Nitrides</topic><topic>Sliding contacts</topic><topic>Sliding friction</topic><topic>Steel</topic><topic>Surfaces</topic><topic>Test and evaluation</topic><topic>Thermochemistry</topic><toplevel>online_resources</toplevel><creatorcontrib>Begelinger,A</creatorcontrib><creatorcontrib>Gee,A W J de</creatorcontrib><creatorcontrib>METAALINSTITUUT TNO APELDOORN (NETHERLANDS) DEPT OF SURFACE TREATMENT AND TRIBOLOGY</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Begelinger,A</au><au>Gee,A W J de</au><aucorp>METAALINSTITUUT TNO APELDOORN (NETHERLANDS) DEPT OF SURFACE TREATMENT AND TRIBOLOGY</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Study of the Lubrication Mechanism of Thin Film Lubricated Concentrated Steel Contacts. The Influence of Pre-Treatment of the Steel on the Load Carrying Capacity</btitle><date>1983-09</date><risdate>1983</risdate><abstract>The effect of the thermochemical surface treatments carburizing, ion-nitriding and liquid-nitriding on the load carrying capacity at high speed (4 m/s) of sliding crossed cylinders of steel, thin film lubricated with a marine diesel engine oil of 60 C, is described for three values of running-in distance, namely 0 m, 30 m and 300 m; running-in being performed at a speed of 0.1 m/s. It is shown that when using untreated surfaces of ball bearing steel 100 Cr 61), carburized surfaces or ion-nitrided surfaces, loading in excess of a critical load value FNc causes a transition from partial elastohydrodynamic lubrication to unlubricated contact (scuffing regime). When using liquid-nitrided surfaces, loading in excess of FNc leads to a transition from partial EHD lubrication of boundary lubrication. This shows that liquid-nitriding considerably increases the upper limit of the temperature range in which boundary lubrication is possible.</abstract><oa>free_for_read</oa></addata></record> |
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| source | DTIC Technical Reports |
| subjects | Carburizing Loads(Forces) Lubricants and Hydraulic Fluids Lubricating films Lubrication Machinery and Tools Nitrides Sliding contacts Sliding friction Steel Surfaces Test and evaluation Thermochemistry |
| title | Study of the Lubrication Mechanism of Thin Film Lubricated Concentrated Steel Contacts. The Influence of Pre-Treatment of the Steel on the Load Carrying Capacity |
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