| Effect of Mn Content on Microstructure and Cryogenic Mechanical Properties of a 7% Ni Steel | |
| Cao, Hong-Wei1,2; Luo, Xing-Hong2; Zhan, Guo-Feng3; Liu, Shi2 | |
| Corresponding Author | Luo, Xing-Hong(xhluo@imr.ac.cn) |
| 2018-07-01 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Volume | 31Issue:7Pages:699-705 |
| Abstract | The effect of Mn content on the microstructure and cryogenic mechanical properties of a 7% Ni steel was investigated within the Mn content range from 0.13% to 0.36%. The microstructure of the steel as determined by optical microscopy, scanning electron microscopy, transmission electron microscopy, electron backscattering diffraction and X-ray diffraction was presented, and the low-temperature mechanical properties were given. The size of prior austenite grain did not change a lot as Mn content increased. Film-like reversed austenite, having high stability, was found mainly in the specimens with lower Mn content; however, in the specimen with the highest Mn content, the role of Mn was not obvious in stabilizing reversed austenite. Besides, with increasing Mn content, the amount of reversed austenite at grain boundaries gradually decreased. The variable Mn content had a significant effect on cryogenic toughness, but not apparent on cryogenic tensile strength or yield strength. An excellent combination of cryogenic tensile and impact properties was obtained when Mn content of steel was 0.13%. |
| Keyword | 7% Ni steel Mn content Microstructure Reversed austenite Cryogenic mechanical properties |
| Funding Organization | Wuhan Iron and Steel (Group) Corp. |
| DOI | 10.1007/s40195-018-0700-1 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Wuhan Iron and Steel (Group) Corp. |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000433167400004 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/128339 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Luo, Xing-Hong |
| Affiliation | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 3.Wuhan Iron & Steel Grp Corp, Res & Dev Ctr, Wuhan 430080, Hubei, Peoples R China |
| Recommended Citation GB/T 7714 | Cao, Hong-Wei,Luo, Xing-Hong,Zhan, Guo-Feng,et al. Effect of Mn Content on Microstructure and Cryogenic Mechanical Properties of a 7% Ni Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2018,31(7):699-705. |
| APA | Cao, Hong-Wei,Luo, Xing-Hong,Zhan, Guo-Feng,&Liu, Shi.(2018).Effect of Mn Content on Microstructure and Cryogenic Mechanical Properties of a 7% Ni Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,31(7),699-705. |
| MLA | Cao, Hong-Wei,et al."Effect of Mn Content on Microstructure and Cryogenic Mechanical Properties of a 7% Ni Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS 31.7(2018):699-705. |
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