Research on Microstructures and Properties of High-Strength Anticorrosion Twinning-Induced Plasticity Steels

doi:10.3390/met12040537

	Research on Microstructures and Properties of High-Strength Anticorrosion Twinning-Induced Plasticity Steels
	Si, Yongli 1,2; Wang, Xingfu 1; Liang, Juhua 1; Han, Fusheng 1
刊名	METALS
	2022-04-01
卷号	12
关键词	TWIP steel Cr alloying twinning M23C6 precipitates mechanical properties corrosion resistance
DOI	10.3390/met12040537
通讯作者	Han, Fusheng(fshan@issp.ac.cn)
英文摘要	The microstructures, mechanical properties, and anticorrosion properties of Fe-25Mn-Cr(12, 18 wt.%)-CN TWIP steels compared with nominal Fe-22Mn-0.6C TWIP steel (TWIP-ref) in the solid-solution state were investigated in the present study by using X-ray diffraction (XRD), electron backscattered diffraction (EBSD), transmission electron microscopy (TEM), tensile tests, and potentiodynamic polarization measurement, etc. The results show that the Fe-Mn-Cr-CN TWIP steels have excellent mechanical properties and anticorrosion properties compared to the TWIP-ref steel. The strain-hardening rate of the 12CrN steel is lower than that of the TWIP-ref steel because of the relatively late generation of high-density deformation twins, which resulted in less tensile strength increments during the tensile test. Moreover, M23C6 precipitates enriched with Mn and Fe formed in the Fe-Mn-Cr-CN steel as the Cr content increased, which had an important influence on the mechanical properties and anticorrosion properties. In the Fe-Mn-Cr-CN TWIP steels, because of the influence of the M23C6 precipitation in the 18CrN sample, the yield strength (sigma(YS)) is increased slightly, while the ultimate tensile strength (sigma(UTS)) and elongation to failure are decreased. In addition, 18CrN has poor corrosion resistance because of the formation of M23C6 precipitation (i.e., it has relatively negative corrosion potential (E-corr) and a smaller corrosion current density (I-corr)).
资助项目	National Natural Science Foundation of China[52001304] ; National Natural Science Foundation of China[51701206] ; National Natural Science Foundation of China[51671187] ; Anhui Province Science Foundation for Youths[2008085QE259] ; Foundation of President of Hefei Institutes of Physical Science, Chinese Academy of Sciences[YZJJ201703]
WOS关键词	STACKING-FAULT ENERGY ; MECHANICAL-PROPERTIES ; TENSILE PROPERTIES ; YIELD STRENGTH ; TEMPERATURE ; DUCTILITY ; BEHAVIOR ; SI
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	MDPI
WOS记录号	WOS:000785344200001
资助机构	National Natural Science Foundation of China ; Anhui Province Science Foundation for Youths ; Foundation of President of Hefei Institutes of Physical Science, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128459]
专题	中国科学院合肥物质科学研究院
通讯作者	Han, Fusheng
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Si, Yongli,Wang, Xingfu,Liang, Juhua,et al. Research on Microstructures and Properties of High-Strength Anticorrosion Twinning-Induced Plasticity Steels[J]. METALS,2022,12.
APA	Si, Yongli,Wang, Xingfu,Liang, Juhua,&Han, Fusheng.(2022).Research on Microstructures and Properties of High-Strength Anticorrosion Twinning-Induced Plasticity Steels.METALS,12.
MLA	Si, Yongli,et al."Research on Microstructures and Properties of High-Strength Anticorrosion Twinning-Induced Plasticity Steels".METALS 12(2022).