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Characteristics of ...
Characteristics of a modified H13 hot-work tool steel fabricated by means of laser beam powder bed fusion
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- Yuan, Miwen, 1990 (author)
- Chalmers University of Technology, Sweden,Central South University,Chalmers tekniska högskola
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- Cao, Yu, 1969 (author)
- Chalmers University of Technology, Sweden; Central South University, China,Chalmers tekniska högskola
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- Karamchedu, Seshendra, 1987 (author)
- Uddeholms AB, Sweden
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- Hosseini, Seyed (author)
- RISE,Tillverkningsprocesser,Chalmers University of Technology, Sweden,Chalmers tekniska högskola,RISE Research Institutes of Sweden
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- Yao, Yiming, 1957 (author)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Berglund, Johan (author)
- RISE,Tillverkningsprocesser,Chalmers University of Technology, Sweden,RISE Research Institutes of Sweden,Chalmers tekniska högskola
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- Liu, L. (author)
- Central South University, China
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- Nyborg, Lars, 1958 (author)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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(creator_code:org_t)
- Elsevier Ltd, 2022
- 2022
- English.
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In: Materials Science & Engineering. - : Elsevier Ltd. - 0921-5093 .- 1873-4936. ; 831
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Abstract
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- In the present study, a modified H13 hot-work tool steel (M-H13) was fabricated by laser beam powder bed fusion (LB-PBF). The effect of two types of post processing, direct tempering from as-built condition (DT) and conventional quenching followed by tempering (QT), on the microstructure and mechanical properties was evaluated. The typical microstructure in QT condition was tempered martensite with carbides along lath boundaries. In DT condition, melt pool boundaries and cellular structure from as-built condition were still observed. While comparable tensile properties and hardness were obtained, DT samples exhibited significantly lower impact toughness compared to QT samples. This was attributed to the difference in work hardening ability and strain rate sensitivity originating from different microstructures obtained under these two heat treatment conditions. The study was also focused on the softening behavior and the correlation with the microstructure of the two post treatments at the elevated temperatures. It was found that the DT samples showed lower thermal softening compared to QT samples. The evolution of carbides was discussed based on the microanalysis results and the JMatPro simulation. © 2021 The Authors
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Additive manufacturing
- Heat treatment
- Mechanical properties
- Softening resistance
- Tool steel
- 3D printers
- Carbides
- Fabrication
- Heat resistance
- Hot working
- Laser beams
- Microstructure
- Strain hardening
- Strain rate
- Tempering
- Tools
- Condition
- Conventional quenching
- Hot-work tool steel
- Lath boundary
- Melt pool
- Microstructures and mechanical properties
- Post-processing
- Powder bed
- Tempered martensite
Publication and Content Type
- ref (subject category)
- art (subject category)
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Yuan, Miwen, 199 ...
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Cao, Yu, 1969
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Karamchedu, Sesh ...
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Hosseini, Seyed
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Yao, Yiming, 195 ...
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Berglund, Johan
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show more...
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Liu, L.
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Nyborg, Lars, 19 ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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ENGINEERING AND ...
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and Materials Engine ...
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and Other Materials ...
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ENGINEERING AND ...
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and Metallurgy and M ...
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Materials Scienc ...
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RISE
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Chalmers University of Technology