Microstructural and micro hardness variation during low temperature recovery annealing in C-Mn high strength Steels
Recovery was studied in four different grades of steel, ULC, HSLA and DP600 and DP800 with varying C-Mn content. All the steels samples were 80% cold rolled and annealed at 300 and 500°C for 30, 60,120, 300 minutes, mainly to study the hardness and microstructural changes. Specimens were further tes...
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| Veröffentlicht in: | Journal of physics. Conference series 2019-08, Vol.1270 (1), p.12017 |
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| creator | Janakiram, S Gautam, Jai Phani, P Sudharshan Kestens, Leo A I |
| description | Recovery was studied in four different grades of steel, ULC, HSLA and DP600 and DP800 with varying C-Mn content. All the steels samples were 80% cold rolled and annealed at 300 and 500°C for 30, 60,120, 300 minutes, mainly to study the hardness and microstructural changes. Specimens were further tested using micro Vickers hardness tester. Microstructural changes were observed using scanning electron microscope. The cold rolled microstructure consisted of ferrite in ULC and ferrite-pearlite in HSLA, DP600 and DP800 steels. All the grains were pancaked and aligned in the rolling direction. The Hardness values increases for annealed specimens at 300 and 500°C in HSLA, DP600 and DP800 compared to cold rolled condition, which can be attributed to hardening of the ferrite matrix due to pinning of dislocations by carbon atoms. The hardness values for annealed specimens in ULC and DP800 decreases at 300 and 500°C which is attributed to softening. |
| doi_str_mv | 10.1088/1742-6596/1270/1/012017 |
| format | Article |
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All the steels samples were 80% cold rolled and annealed at 300 and 500°C for 30, 60,120, 300 minutes, mainly to study the hardness and microstructural changes. Specimens were further tested using micro Vickers hardness tester. Microstructural changes were observed using scanning electron microscope. The cold rolled microstructure consisted of ferrite in ULC and ferrite-pearlite in HSLA, DP600 and DP800 steels. All the grains were pancaked and aligned in the rolling direction. The Hardness values increases for annealed specimens at 300 and 500°C in HSLA, DP600 and DP800 compared to cold rolled condition, which can be attributed to hardening of the ferrite matrix due to pinning of dislocations by carbon atoms. 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Conference series</title><addtitle>J. Phys.: Conf. Ser</addtitle><description>Recovery was studied in four different grades of steel, ULC, HSLA and DP600 and DP800 with varying C-Mn content. All the steels samples were 80% cold rolled and annealed at 300 and 500°C for 30, 60,120, 300 minutes, mainly to study the hardness and microstructural changes. Specimens were further tested using micro Vickers hardness tester. Microstructural changes were observed using scanning electron microscope. The cold rolled microstructure consisted of ferrite in ULC and ferrite-pearlite in HSLA, DP600 and DP800 steels. All the grains were pancaked and aligned in the rolling direction. The Hardness values increases for annealed specimens at 300 and 500°C in HSLA, DP600 and DP800 compared to cold rolled condition, which can be attributed to hardening of the ferrite matrix due to pinning of dislocations by carbon atoms. The hardness values for annealed specimens in ULC and DP800 decreases at 300 and 500°C which is attributed to softening.</description><subject>Annealing</subject><subject>Carbon manganese steels</subject><subject>Cold rolling</subject><subject>Diamond pyramid hardness</subject><subject>Dislocation pinning</subject><subject>Dual phase steels</subject><subject>Electron microscopes</subject><subject>High strength low alloy steels</subject><subject>Low temperature</subject><subject>Microstructure</subject><subject>Pearlite</subject><subject>Physics</subject><subject>Recovery</subject><subject>Rolling direction</subject><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFkFtLwzAYhoMoOKe_wYB3Qm0OTZNdyvDIhsL0OqRpumZ0aU3ayf69LZWJIJibLyTv837wAHCJ0Q1GQsSYJyRK2SyNMeEoxjHCBGF-BCaHn-PDXYhTcBbCBiHaHz4BYWm1r0PrO912XlVQuRxuhzdYKp87EwLcKW9Va2sH885bt4ZV_Qlbs22MVz1koDe63hm_72FnVDVErIPzaOlgadcl7OuNW7clXLXGVOEcnBSqCubie07B-_3d2_wxWrw8PM1vF5GmRPCIcpJSWiiuM5TQJCdZJpDmOslyrpCmgiFO6SzVjCE005yQPNFGU8YypjKV0im4GnsbX390JrRyU3fe9SslYSknLGGC9ik-pgYPwZtCNt5uld9LjORgWA7u5OBRDoYllqPhnqQjaevmp_p_6voP6vl1vvodlE1e0C9kjIxq</recordid><startdate>20190801</startdate><enddate>20190801</enddate><creator>Janakiram, S</creator><creator>Gautam, Jai</creator><creator>Phani, P Sudharshan</creator><creator>Kestens, Leo A I</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20190801</creationdate><title>Microstructural and micro hardness variation during low temperature recovery annealing in C-Mn high strength Steels</title><author>Janakiram, S ; Gautam, Jai ; Phani, P Sudharshan ; Kestens, Leo A I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3287-372633fa7cb0434d2bb80c7c4bd7a0c385073396c55009c722d4cec355b5aba63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Annealing</topic><topic>Carbon manganese steels</topic><topic>Cold rolling</topic><topic>Diamond pyramid hardness</topic><topic>Dislocation pinning</topic><topic>Dual phase steels</topic><topic>Electron microscopes</topic><topic>High strength low alloy steels</topic><topic>Low temperature</topic><topic>Microstructure</topic><topic>Pearlite</topic><topic>Physics</topic><topic>Recovery</topic><topic>Rolling direction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Janakiram, S</creatorcontrib><creatorcontrib>Gautam, Jai</creatorcontrib><creatorcontrib>Phani, P Sudharshan</creatorcontrib><creatorcontrib>Kestens, Leo A I</creatorcontrib><collection>Institute of Physics Open Access Journal Titles</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Access via ProQuest (Open Access)</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><jtitle>Journal of physics. Conference series</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Janakiram, S</au><au>Gautam, Jai</au><au>Phani, P Sudharshan</au><au>Kestens, Leo A I</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microstructural and micro hardness variation during low temperature recovery annealing in C-Mn high strength Steels</atitle><jtitle>Journal of physics. Conference series</jtitle><addtitle>J. Phys.: Conf. Ser</addtitle><date>2019-08-01</date><risdate>2019</risdate><volume>1270</volume><issue>1</issue><spage>12017</spage><pages>12017-</pages><issn>1742-6588</issn><eissn>1742-6596</eissn><abstract>Recovery was studied in four different grades of steel, ULC, HSLA and DP600 and DP800 with varying C-Mn content. All the steels samples were 80% cold rolled and annealed at 300 and 500°C for 30, 60,120, 300 minutes, mainly to study the hardness and microstructural changes. 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| subjects | Annealing Carbon manganese steels Cold rolling Diamond pyramid hardness Dislocation pinning Dual phase steels Electron microscopes High strength low alloy steels Low temperature Microstructure Pearlite Physics Recovery Rolling direction |
| title | Microstructural and micro hardness variation during low temperature recovery annealing in C-Mn high strength Steels |
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