| Effects of TiC on the microstructure and formation of acicular ferrite in ferritic stainless steel | |
| Li Yang; Du Pengfei; Jiang Zhouhua; Yao Conglin; Bai Lu; Wang Qi; Xu Guang; Chen Changyong; Zhang Lei; Li Huabing | |
| 2019 | |
| Source Publication | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
 |
| ISSN | 1674-4799 |
| Volume | 26Issue:11Pages:1385-1395 |
| Abstract | kThe formation mechanism of acicular ferrite and its microstructural characteristics in 430 ferrite stainless steel with TiC additions were studied by theory and experiment. Using an "edge-to-edge matching" model, a 5.25 mismatch between TiC (FCC structure) and fer-ritic stainless steel (BCC structure) was identified, which met the mismatch requirement for the heterogeneous nucleation of 430 ferritic stainless steel. TiC was found to be an effective nucleation site for the formation of acicular ferrite in a smelting experiment, as analyzed by metallographic examination, Image-Pro Plus 6.0 analysis software, and SEM-EDS. Furthermore, small inclusions in the size of 2-4 mu m increased the probability of acicular ferrite nucleation, and the secondary acicular ferrite would grow sympathetically from the initial acicular ferrite to produce multi-dimensional acicular ferrites. Moreover, the addition of TiC can increase the average microstrain and dislocation density of 430 ferrite stainless steel, as calculated by Williamson-Hall (WH) method, which could play some role in strengthening the dislocation. |
| Keyword | NONMETALLIC INCLUSIONS CARBON-STEEL NUCLEATION TRANSFORMATION PRECIPITATION BEHAVIOR METALS acicular ferrite dislocation density stainless steel TiC grain refiner oxide metallurgy |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] |
| CSCD ID | CSCD:6618964 |
| Citation statistics |
Cited Times:1[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/151409 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Li Yang,Du Pengfei,Jiang Zhouhua,et al. Effects of TiC on the microstructure and formation of acicular ferrite in ferritic stainless steel[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2019,26(11):1385-1395. |
| APA | Li Yang.,Du Pengfei.,Jiang Zhouhua.,Yao Conglin.,Bai Lu.,...&Li Huabing.(2019).Effects of TiC on the microstructure and formation of acicular ferrite in ferritic stainless steel.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,26(11),1385-1395. |
| MLA | Li Yang,et al."Effects of TiC on the microstructure and formation of acicular ferrite in ferritic stainless steel".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 26.11(2019):1385-1395. |
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