The Characteristics and Generating Mechanism of Large Precipitates in Ti-Containing H13 Tool Steel
Abstract: The characteristics of large precipitates in H13 tool steel with 0.015wt% Ti were studied. The result shows that three types of phases larger than 1 μm exist in the as-cast ingot, that is, (Ti, V) (C, N) type phase, (V, Mo, Cr) C type phase and sulfide. (Ti, V) (C, N) type phase could be further classified as the homogeneous Ti-rich one and the Ti-V-rich one in which Ti/V ratio gradually changes. (V, Mo, Cr) C type phase contains the V-rich one and the Mo-Cr-rich one. The compositional characteristics in all of them have little relation with the cutting position or cooling rate. The precipitating process could be well described through calculation by Thermo-Calc software. During solidification, the primary phase (Ti, V)(C, N) first starts to precipitate in the form of Ti-rich carbonitride. With the development of solidification, the ratio of Ti decreases and that of V increases. Then the primary phase Ti-V-rich (Ti, V)(C, N) and V-rich (V, Mo, Cr) C appears successively. Mo-Cr-rich (V, Mo, Cr) C phase does not precipitate until the solidification process reaches to the end. Sulfide precipitates before (V, Mo, Cr) C type phase and it could act as the nucleus of (V, Mo, Cr) C.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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The Characteristics and Generating Mechanism of Large Precipitates in Ti-Containing H13 Tool Steel ; volume:36 ; number:2 ; year:2017 ; pages:189-195 ; extent:7
High temperature materials and processes ; 36, Heft 2 (2017), 189-195 (gesamt 7)
- Urheber
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Xie, You
Cheng, Guoguang
Chen, Lie
Zhang, Yandong
Yan, Qingzhong
- DOI
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10.1515/htmp-2015-0177
- URN
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urn:nbn:de:101:1-2501280246320.574542724233
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:24 MESZ
Datenpartner
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Beteiligte
- Xie, You
- Cheng, Guoguang
- Chen, Lie
- Zhang, Yandong
- Yan, Qingzhong
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