Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF Steel
Fast nanoindentation technology is a new method used to generate performance maps showing the hardness and elastic modulus distribution of each position, and it has become a research focus. In this paper, nanoindentation combined with scanning electron backscatter diffraction (EBSD) is used to analy...
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MDPI AG
2024-12-01
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| Series: | Metals |
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| author | Xiaodan Zhang Chao Zhang Yunling Li Zhaobo Wu Jikang Li Qilu Ge |
| author_facet | Xiaodan Zhang Chao Zhang Yunling Li Zhaobo Wu Jikang Li Qilu Ge |
| author_sort | Xiaodan Zhang |
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| description | Fast nanoindentation technology is a new method used to generate performance maps showing the hardness and elastic modulus distribution of each position, and it has become a research focus. In this paper, nanoindentation combined with scanning electron backscatter diffraction (EBSD) is used to analyze the micro-regional properties of single-phase interstitial-free (IF) steel. Hardness, elastic modulus and the orientation of a 200 μm × 200 μm area were characterized in situ. The relationships between hardness, elastic modulus and orientation were analyzed. The experimental results showed that the hardness varied from 1.25 GPa to 2.57 GPa, while the modulus varied from 122 GPa to 227 GPa with different crystallographic orientations. The hardness value of the (111) crystal plane was particularly high, with an average hardness of about 1.84 GPa, which is due to its higher work hardening rate. This result is consistent with the EBSD kernel average misorientation (KAM) micrograph. The harder locations with greater misorientation are more difficult to deform compared to locations with small hardness regions, for example, the (001) crystal plane. However, there seems to be no obvious strong relationship between modulus and orientation. The modulus of the regions with lower hardness seems to be smaller. The results of the KAM diagram are consistent with those of hardness mapping. |
| format | Article |
| id | doaj-art-cb1402aa0e49467f9d7151b576d1d4af |
| institution | OA Journals |
| issn | 2075-4701 |
| language | English |
| publishDate | 2024-12-01 |
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| series | Metals |
| spelling | doaj-art-cb1402aa0e49467f9d7151b576d1d4af2025-08-20T02:00:39ZengMDPI AGMetals2075-47012024-12-011412142910.3390/met14121429Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF SteelXiaodan Zhang0Chao Zhang1Yunling Li2Zhaobo Wu3Jikang Li4Qilu Ge5Central Iron and Steel Research Institute Company Limited, Beijing 100081, ChinaSchool of Metallurgy Engineering, Jiangsu University of Science and Technology, Zhangjiagang 215600, ChinaNCS Testing Technology Co., Ltd., Beijing 100081, ChinaCentral Iron and Steel Research Institute Company Limited, Beijing 100081, ChinaCentral Iron and Steel Research Institute Company Limited, Beijing 100081, ChinaCentral Iron and Steel Research Institute Company Limited, Beijing 100081, ChinaFast nanoindentation technology is a new method used to generate performance maps showing the hardness and elastic modulus distribution of each position, and it has become a research focus. In this paper, nanoindentation combined with scanning electron backscatter diffraction (EBSD) is used to analyze the micro-regional properties of single-phase interstitial-free (IF) steel. Hardness, elastic modulus and the orientation of a 200 μm × 200 μm area were characterized in situ. The relationships between hardness, elastic modulus and orientation were analyzed. The experimental results showed that the hardness varied from 1.25 GPa to 2.57 GPa, while the modulus varied from 122 GPa to 227 GPa with different crystallographic orientations. The hardness value of the (111) crystal plane was particularly high, with an average hardness of about 1.84 GPa, which is due to its higher work hardening rate. This result is consistent with the EBSD kernel average misorientation (KAM) micrograph. The harder locations with greater misorientation are more difficult to deform compared to locations with small hardness regions, for example, the (001) crystal plane. However, there seems to be no obvious strong relationship between modulus and orientation. The modulus of the regions with lower hardness seems to be smaller. The results of the KAM diagram are consistent with those of hardness mapping.https://www.mdpi.com/2075-4701/14/12/1429IF steelnanoindentationhardnesselastic modulusEBSD |
| spellingShingle | Xiaodan Zhang Chao Zhang Yunling Li Zhaobo Wu Jikang Li Qilu Ge Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF Steel Metals IF steel nanoindentation hardness elastic modulus EBSD |
| title | Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF Steel |
| title_full | Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF Steel |
| title_fullStr | Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF Steel |
| title_full_unstemmed | Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF Steel |
| title_short | Research on Fast Nanoindentation Technology to Analyze the Non-Homogeneity of IF Steel |
| title_sort | research on fast nanoindentation technology to analyze the non homogeneity of if steel |
| topic | IF steel nanoindentation hardness elastic modulus EBSD |
| url | https://www.mdpi.com/2075-4701/14/12/1429 |
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