Surface Electric Arc Hardening of Low-Carbon Steels
Examined geometric characteristics, microhardness and features of structure formation in the heat affected zone of steels 09G2, 20L, 20FL. These studies were carried out after surface quenching by a magnetically controlled (scanning) DC electric arc in a protective argon atmosphere. It is shown that...
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| Veröffentlicht in: | Materials science forum 2020-05, Vol.989, p.318-323 |
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| creator | Mironova, M.V. Safonov, E.N. |
| description | Examined geometric characteristics, microhardness and features of structure formation in the heat affected zone of steels 09G2, 20L, 20FL. These studies were carried out after surface quenching by a magnetically controlled (scanning) DC electric arc in a protective argon atmosphere. It is shown that electric arc hardening forms on the treated surface of the steel a thin layer of martensitic-austenitic structure with varying composition and hardness. A ferrite-austenitic structure is formed in the region of transition from the base metal to the heat-strengthened metal. This structure contains crushed ferrite grain and winding boundaries between the structural components. On the periphery of austenitic grains martensitic layer is observed. Repeated heating, occurring during heat treatment of the adjacent surface area, is accompanied by a partial decay of martensite and austenite of a pre-hardened structure with the formation of bainite-and sorbitol-like tempering structures. On the surface, experienced repeated heating, the volume fraction of austenite increases. The dependences allowing to control the structural state and depth of the hardening zone are established. |
| doi_str_mv | 10.4028/www.scientific.net/MSF.989.318 |
| format | Article |
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These studies were carried out after surface quenching by a magnetically controlled (scanning) DC electric arc in a protective argon atmosphere. It is shown that electric arc hardening forms on the treated surface of the steel a thin layer of martensitic-austenitic structure with varying composition and hardness. A ferrite-austenitic structure is formed in the region of transition from the base metal to the heat-strengthened metal. This structure contains crushed ferrite grain and winding boundaries between the structural components. On the periphery of austenitic grains martensitic layer is observed. Repeated heating, occurring during heat treatment of the adjacent surface area, is accompanied by a partial decay of martensite and austenite of a pre-hardened structure with the formation of bainite-and sorbitol-like tempering structures. On the surface, experienced repeated heating, the volume fraction of austenite increases. 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These studies were carried out after surface quenching by a magnetically controlled (scanning) DC electric arc in a protective argon atmosphere. It is shown that electric arc hardening forms on the treated surface of the steel a thin layer of martensitic-austenitic structure with varying composition and hardness. A ferrite-austenitic structure is formed in the region of transition from the base metal to the heat-strengthened metal. This structure contains crushed ferrite grain and winding boundaries between the structural components. On the periphery of austenitic grains martensitic layer is observed. Repeated heating, occurring during heat treatment of the adjacent surface area, is accompanied by a partial decay of martensite and austenite of a pre-hardened structure with the formation of bainite-and sorbitol-like tempering structures. On the surface, experienced repeated heating, the volume fraction of austenite increases. The dependences allowing to control the structural state and depth of the hardening zone are established.</description><subject>Argon</subject><subject>Austenite</subject><subject>Austenitic stainless steels</subject><subject>Bainite</subject><subject>Base metal</subject><subject>Carbon</subject><subject>Cooling</subject><subject>Crystal lattices</subject><subject>Ferrite</subject><subject>Heat affected zone</subject><subject>Heat resistance</subject><subject>Heat treatment</subject><subject>Homogenization</subject><subject>Low carbon steels</subject><subject>Martensite</subject><subject>Materials science</subject><subject>Microhardness</subject><subject>Phase transitions</subject><subject>Sorbitol</subject><subject>Steel</subject><issn>0255-5476</issn><issn>1662-9752</issn><issn>1662-9752</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNqNkE9LwzAchoMoOKffoSB4a5ekzb-LOMbmhIqH6Tm0vybaMdOZZBS_vZEJu3p6Lw_PCw9CdwQXFaZyNo5jEaA3Lva2h8KZOHverAolVVESeYYmhHOaK8HoOZpgyljOKsEv0VUIW4wTQvgElZuDtw2YbLkzEH0P2dxDtm58Z1zv3rPBZvUw5ovGt4PLNtGYXbhGF7bZBXPzt1P0tlq-LtZ5_fL4tJjXOVCCZV41EpctMMyZsESVQknJqGAMBO0oMCs7DhYUFoyUompVoiUruaHQdkzycopuj969H74OJkS9HQ7epUtNK4ylUlzIRN0fKfBDCN5Yvff9Z-O_NcH6N5ROofQplE6hdAqlUyidKiTBw1EQfeNCNPBx-vmn4gddWXeQ</recordid><startdate>20200504</startdate><enddate>20200504</enddate><creator>Mironova, M.V.</creator><creator>Safonov, E.N.</creator><general>Trans Tech Publications Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SR</scope><scope>7XB</scope><scope>88I</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>M2P</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope></search><sort><creationdate>20200504</creationdate><title>Surface Electric Arc Hardening of Low-Carbon Steels</title><author>Mironova, M.V. ; Safonov, E.N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2108-4a803bc50657f193798852755c72d2c5f8d6cfc90751374b903b8536e2cbd5863</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Argon</topic><topic>Austenite</topic><topic>Austenitic stainless steels</topic><topic>Bainite</topic><topic>Base metal</topic><topic>Carbon</topic><topic>Cooling</topic><topic>Crystal lattices</topic><topic>Ferrite</topic><topic>Heat affected zone</topic><topic>Heat resistance</topic><topic>Heat treatment</topic><topic>Homogenization</topic><topic>Low carbon steels</topic><topic>Martensite</topic><topic>Materials science</topic><topic>Microhardness</topic><topic>Phase transitions</topic><topic>Sorbitol</topic><topic>Steel</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mironova, M.V.</creatorcontrib><creatorcontrib>Safonov, E.N.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><jtitle>Materials science forum</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mironova, M.V.</au><au>Safonov, E.N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surface Electric Arc Hardening of Low-Carbon Steels</atitle><jtitle>Materials science forum</jtitle><date>2020-05-04</date><risdate>2020</risdate><volume>989</volume><spage>318</spage><epage>323</epage><pages>318-323</pages><issn>0255-5476</issn><issn>1662-9752</issn><eissn>1662-9752</eissn><abstract>Examined geometric characteristics, microhardness and features of structure formation in the heat affected zone of steels 09G2, 20L, 20FL. These studies were carried out after surface quenching by a magnetically controlled (scanning) DC electric arc in a protective argon atmosphere. It is shown that electric arc hardening forms on the treated surface of the steel a thin layer of martensitic-austenitic structure with varying composition and hardness. A ferrite-austenitic structure is formed in the region of transition from the base metal to the heat-strengthened metal. This structure contains crushed ferrite grain and winding boundaries between the structural components. On the periphery of austenitic grains martensitic layer is observed. Repeated heating, occurring during heat treatment of the adjacent surface area, is accompanied by a partial decay of martensite and austenite of a pre-hardened structure with the formation of bainite-and sorbitol-like tempering structures. On the surface, experienced repeated heating, the volume fraction of austenite increases. The dependences allowing to control the structural state and depth of the hardening zone are established.</abstract><cop>Pfaffikon</cop><pub>Trans Tech Publications Ltd</pub><doi>10.4028/www.scientific.net/MSF.989.318</doi><tpages>6</tpages></addata></record> |
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| subjects | Argon Austenite Austenitic stainless steels Bainite Base metal Carbon Cooling Crystal lattices Ferrite Heat affected zone Heat resistance Heat treatment Homogenization Low carbon steels Martensite Materials science Microhardness Phase transitions Sorbitol Steel |
| title | Surface Electric Arc Hardening of Low-Carbon Steels |
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