Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV

The effect of titanium on the carbides and mechanical properties of martensitic stainless steel 8Cr13MoV was studied. The results showed that TiCs not only acted as nucleation sites for δ-Fe and eutectic carbides, leading to the refinement of the microstructure, but also inhibited the formation of e...

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Main Authors: Wen-Tao Yu, Jing Li, Cheng-Bin Shi, Qin-Tian Zhu
Format: Article
Language:English
Published: MDPI AG 2016-08-01
Series:Metals
Subjects:
Online Access:http://www.mdpi.com/2075-4701/6/8/193
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spelling doaj-3ce33c1efe9147598e221c55e7a1dd532020-11-24T22:32:04ZengMDPI AGMetals2075-47012016-08-016819310.3390/met6080193met6080193Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoVWen-Tao Yu0Jing Li1Cheng-Bin Shi2Qin-Tian Zhu3State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 1000083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 1000083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 1000083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 1000083, ChinaThe effect of titanium on the carbides and mechanical properties of martensitic stainless steel 8Cr13MoV was studied. The results showed that TiCs not only acted as nucleation sites for δ-Fe and eutectic carbides, leading to the refinement of the microstructure, but also inhibited the formation of eutectic carbides M7C3. The addition of titanium in steel also promoted the transformation of M7C3-type to M23C6-type carbides, and consequently more carbides could be dissolved into the matrix during hot processing as demonstrated by the determination of extracted carbides from the steel matrix. Meanwhile, titanium suppressed the precipitation of secondary carbides during annealing. The appropriate amount of titanium addition decreased the size and fraction of primary carbides in the as-cast ingot, and improved the mechanical properties of the annealed steel.http://www.mdpi.com/2075-4701/6/8/193carbidemechanical propertyhigh-carbon martensitic stainless steeltitanium
collection DOAJ
language English
format Article
sources DOAJ
author Wen-Tao Yu
Jing Li
Cheng-Bin Shi
Qin-Tian Zhu
spellingShingle Wen-Tao Yu
Jing Li
Cheng-Bin Shi
Qin-Tian Zhu
Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV
Metals
carbide
mechanical property
high-carbon martensitic stainless steel
titanium
author_facet Wen-Tao Yu
Jing Li
Cheng-Bin Shi
Qin-Tian Zhu
author_sort Wen-Tao Yu
title Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV
title_short Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV
title_full Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV
title_fullStr Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV
title_full_unstemmed Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV
title_sort effect of titanium on the microstructure and mechanical properties of high-carbon martensitic stainless steel 8cr13mov
publisher MDPI AG
series Metals
issn 2075-4701
publishDate 2016-08-01
description The effect of titanium on the carbides and mechanical properties of martensitic stainless steel 8Cr13MoV was studied. The results showed that TiCs not only acted as nucleation sites for δ-Fe and eutectic carbides, leading to the refinement of the microstructure, but also inhibited the formation of eutectic carbides M7C3. The addition of titanium in steel also promoted the transformation of M7C3-type to M23C6-type carbides, and consequently more carbides could be dissolved into the matrix during hot processing as demonstrated by the determination of extracted carbides from the steel matrix. Meanwhile, titanium suppressed the precipitation of secondary carbides during annealing. The appropriate amount of titanium addition decreased the size and fraction of primary carbides in the as-cast ingot, and improved the mechanical properties of the annealed steel.
topic carbide
mechanical property
high-carbon martensitic stainless steel
titanium
url http://www.mdpi.com/2075-4701/6/8/193
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