Effects of vanadium content on the carbides transformation and strengthening mechanism of MPS700V hot-work die steel at room and elevated temperatures

The effects of vanadium content on the microstructural and mechanical properties of a newly developed hot-work die steel (MPS700V) at room and elevated temperatures have been investigated in this paper. It shows that the ultimate tensile strength (UTS) of MPS700V at room temperature and 700 °C are b...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2021-05, Vol.813, p.141091, Article 141091
Hauptverfasser: Zhang, Zunjun, Zhang, Jishan, Lian, Yong, Ma, Minyu, Zhao, Chao, Ye, Huanyu, Li, Gaojie, Zhang, Cheng, Huang, Jinfeng
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container_title Materials science & engineering. A, Structural materials : properties, microstructure and processing
container_volume 813
creator Zhang, Zunjun
Zhang, Jishan
Lian, Yong
Ma, Minyu
Zhao, Chao
Ye, Huanyu
Li, Gaojie
Zhang, Cheng
Huang, Jinfeng
description The effects of vanadium content on the microstructural and mechanical properties of a newly developed hot-work die steel (MPS700V) at room and elevated temperatures have been investigated in this paper. It shows that the ultimate tensile strength (UTS) of MPS700V at room temperature and 700 °C are both strongly dependent on the V content. With the increase of V content from 0 to 1.2% V, The UTS at room temperature increases from 1127 MPa to 1442 MPa, and the UTS at 700 °C increases from 400 MPa to 550 MPa. The transmission electron microscope (TEM) shows that the addition of V is beneficial to increase the nucleation rate and volume fraction of MC nano-carbides during the tempering process, and the size of the MC nano-carbides decreases with the increase of V content. The addition of V also increases the thermal stability of MC nano-carbides at 700 °C, which can be related to the reducing the interface mismatch between MC and matrix. Furthermore, a transformation from Orowan bypass strengthening mechanism to shearing strengthening mechanism caused by the V addition is proposed based on the theoretical analysis and TEM observation.
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It shows that the ultimate tensile strength (UTS) of MPS700V at room temperature and 700 °C are both strongly dependent on the V content. With the increase of V content from 0 to 1.2% V, The UTS at room temperature increases from 1127 MPa to 1442 MPa, and the UTS at 700 °C increases from 400 MPa to 550 MPa. The transmission electron microscope (TEM) shows that the addition of V is beneficial to increase the nucleation rate and volume fraction of MC nano-carbides during the tempering process, and the size of the MC nano-carbides decreases with the increase of V content. The addition of V also increases the thermal stability of MC nano-carbides at 700 °C, which can be related to the reducing the interface mismatch between MC and matrix. Furthermore, a transformation from Orowan bypass strengthening mechanism to shearing strengthening mechanism caused by the V addition is proposed based on the theoretical analysis and TEM observation.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2021.141091</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Carbides ; High temperature ; High-temperature strength ; Hot work tool steels ; Hot working ; Hot-work die steel ; Mechanical properties ; Nano-carbides ; Nucleation ; Room temperature ; Shearing ; Strengthening ; Strengthening mechanism ; Thermal stability ; Transmission electron microscopy ; Ultimate tensile strength ; Vanadium content</subject><ispartof>Materials science &amp; engineering. 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A, Structural materials : properties, microstructure and processing</title><description>The effects of vanadium content on the microstructural and mechanical properties of a newly developed hot-work die steel (MPS700V) at room and elevated temperatures have been investigated in this paper. It shows that the ultimate tensile strength (UTS) of MPS700V at room temperature and 700 °C are both strongly dependent on the V content. With the increase of V content from 0 to 1.2% V, The UTS at room temperature increases from 1127 MPa to 1442 MPa, and the UTS at 700 °C increases from 400 MPa to 550 MPa. The transmission electron microscope (TEM) shows that the addition of V is beneficial to increase the nucleation rate and volume fraction of MC nano-carbides during the tempering process, and the size of the MC nano-carbides decreases with the increase of V content. The addition of V also increases the thermal stability of MC nano-carbides at 700 °C, which can be related to the reducing the interface mismatch between MC and matrix. Furthermore, a transformation from Orowan bypass strengthening mechanism to shearing strengthening mechanism caused by the V addition is proposed based on the theoretical analysis and TEM observation.</description><subject>Carbides</subject><subject>High temperature</subject><subject>High-temperature strength</subject><subject>Hot work tool steels</subject><subject>Hot working</subject><subject>Hot-work die steel</subject><subject>Mechanical properties</subject><subject>Nano-carbides</subject><subject>Nucleation</subject><subject>Room temperature</subject><subject>Shearing</subject><subject>Strengthening</subject><subject>Strengthening mechanism</subject><subject>Thermal stability</subject><subject>Transmission electron microscopy</subject><subject>Ultimate tensile strength</subject><subject>Vanadium content</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kM9qGzEQxkVpoW7aF-hJkPO6I2m1u4JeQkjbQEIC_XMVsjSK5XolR5Jd-iJ93shxz4GBOcz3fTPzI-QjgyUDNnzaLOeCZsmBsyXrGSj2iizYNIquV2J4TRagOOskKPGWvCtlAwCsB7kg_668R1sLTZ4eTDQu7GdqU6wYK02R1jVSa_IqOCy0ZhOLT3k2NbSZiY6WmjE-NFUM8YHOaNcmhjIf427vv48Av-g61e5Pyr-pC9j0iFtqKs0pzc8JuMWDqehoxXmH2dR9xvKevPFmW_DD_35Gfn65-nH5rbu5-3p9eXHTWcGn2h4SOK28V9aAV4z7lUQwClkrMfiBD1YOTnDBJgaD9CMfR9Gv7CjU1Dsw4oycn3J3OT3usVS9Sfsc20rNpZTDJEemmoqfVDanUjJ6vcthNvmvZqCP_PVGH_nrI3994t9Mn08mbPcfAmZdbMBo0YXciGuXwkv2J9qCkBI</recordid><startdate>20210505</startdate><enddate>20210505</enddate><creator>Zhang, Zunjun</creator><creator>Zhang, Jishan</creator><creator>Lian, Yong</creator><creator>Ma, Minyu</creator><creator>Zhao, Chao</creator><creator>Ye, Huanyu</creator><creator>Li, Gaojie</creator><creator>Zhang, Cheng</creator><creator>Huang, Jinfeng</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-4235-5454</orcidid><orcidid>https://orcid.org/0000-0002-3771-7633</orcidid></search><sort><creationdate>20210505</creationdate><title>Effects of vanadium content on the carbides transformation and strengthening mechanism of MPS700V hot-work die steel at room and elevated temperatures</title><author>Zhang, Zunjun ; Zhang, Jishan ; Lian, Yong ; Ma, Minyu ; Zhao, Chao ; Ye, Huanyu ; Li, Gaojie ; Zhang, Cheng ; Huang, Jinfeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-503e8bff9ca0f912fb5e0a9e19e136f626c56d323181065f727734bc73984d0a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Carbides</topic><topic>High temperature</topic><topic>High-temperature strength</topic><topic>Hot work tool steels</topic><topic>Hot working</topic><topic>Hot-work die steel</topic><topic>Mechanical properties</topic><topic>Nano-carbides</topic><topic>Nucleation</topic><topic>Room temperature</topic><topic>Shearing</topic><topic>Strengthening</topic><topic>Strengthening mechanism</topic><topic>Thermal stability</topic><topic>Transmission electron microscopy</topic><topic>Ultimate tensile strength</topic><topic>Vanadium content</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Zunjun</creatorcontrib><creatorcontrib>Zhang, Jishan</creatorcontrib><creatorcontrib>Lian, Yong</creatorcontrib><creatorcontrib>Ma, Minyu</creatorcontrib><creatorcontrib>Zhao, Chao</creatorcontrib><creatorcontrib>Ye, Huanyu</creatorcontrib><creatorcontrib>Li, Gaojie</creatorcontrib><creatorcontrib>Zhang, Cheng</creatorcontrib><creatorcontrib>Huang, Jinfeng</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science &amp; engineering. 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subjects Carbides
High temperature
High-temperature strength
Hot work tool steels
Hot working
Hot-work die steel
Mechanical properties
Nano-carbides
Nucleation
Room temperature
Shearing
Strengthening
Strengthening mechanism
Thermal stability
Transmission electron microscopy
Ultimate tensile strength
Vanadium content
title Effects of vanadium content on the carbides transformation and strengthening mechanism of MPS700V hot-work die steel at room and elevated temperatures
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