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Effect of Solution Carbon and Nitrogen on the Microstructural Size and Crystallography of Lath Martensite in Fe–N and Fe–C Alloys
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- Morito Shigekazu
- Department of Materials Science, Shimane University
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- Iwami Yuki
- Department of Materials Analysis, Shimane University
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- Koyano Tamotsu
- Cryogenics Division, Research Facility Center, University of Tsukuba
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- Ohba Takuya
- Department of Materials Science, Shimane University
Bibliographic Information
- Other Title
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- Effect of Solution Carbon and Nitrogen on the Microstructural Size and Crystallography of Lath Martensite in Fe–N and Fe–C Alloys
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Description
Microstructures of lath martensite that contains bcc or bct martensite crystals in Fe–C alloys are known to depend on the carbon content of the alloys. The effect of nitrogen content on microstructure, however, has not yet been elucidated. This study elucidates the effects of carbon and nitrogen content on microstructures via local crystallographic analysis. We found that the packet sizes are similar when the nitrogen content in the alloys are the same as the carbon content, with the packet size decreasing with increasing carbon and nitrogen content. The block and sub-block thicknesses in low nitrogen lath martensite are smaller than those in low carbon lath martensite, whereas those in medium and high carbon and nitrogen lath martensites are similar. Martensite lath thickness and dislocation density in the Fe–N alloy laths are lower than those in the Fe–C alloys laths, and the distribution of misorientation angles between adjacent the blocks and sub-blocks in Fe–N alloys is similar to that in Fe–C alloys.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 57 (3), 227-232, 2016
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679231297280
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- NII Article ID
- 130005127309
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 027194346
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed