| Microstructure evolution in AISI 304 stainless steel during near rapid directional solidification | |
| J. W. Fu; Y. S. Yang; J. J. Guo; J. C. Ma; W. H. Tong | |
| 2009 | |
| Source Publication | Materials Science and Technology
 |
| ISSN | 0267-0836 |
| Volume | 25Issue:8Pages:1013-1016 |
| Abstract | The microstructure evolution of near rapidly directionally solidified AISI 304 stainless steel was investigated in the present paper. It is found that the microstructure consists of delta ferrite dendrites with developed sidebranches and interdendritic austenite (gamma) under the temperature gradient (G) of 20 K mm 21 and growth rate (V) of 1.0 mm s(-1). Coupled growth microstructures of thin lamellar ferrite and austenite begin to form at a higher growth rate of 2.0 mm s(-1). The formation mechanism of the coupled microstructures is analysed based on the nucleation and constitutional undercooling criterion that the gamma ferrite phase and austenite phase form alternately before the steady state growth of each phase is reached due to larger undercooling. With further increase of the growth rate up to 3.0 mm s(-1), the morphology of the d ferrite transforms from lathy to cellular. |
| description.department | [fu, j. w.; yang, y. s.; ma, j. c.; tong, w. h.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [fu, j. w.; guo, j. j.] harbin inst technol, sch mat sci & engn, harbin 150001, peoples r china.;yang, ys (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;ysyang@imr.ac.cn |
| Keyword | Stainless Steel Microstructure Evolution Directional Solidification Austenitic Stainless-steel Phase-formation Cooling Rate Welds Selection Alloys |
| URL | 查看原文 |
| WOS ID | WOS:000269019800012 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/31909 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | J. W. Fu,Y. S. Yang,J. J. Guo,et al. Microstructure evolution in AISI 304 stainless steel during near rapid directional solidification[J]. Materials Science and Technology,2009,25(8):1013-1016. |
| APA | J. W. Fu,Y. S. Yang,J. J. Guo,J. C. Ma,&W. H. Tong.(2009).Microstructure evolution in AISI 304 stainless steel during near rapid directional solidification.Materials Science and Technology,25(8),1013-1016. |
| MLA | J. W. Fu,et al."Microstructure evolution in AISI 304 stainless steel during near rapid directional solidification".Materials Science and Technology 25.8(2009):1013-1016. |
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