| Effect of silicon and prior deformation of austenite on isothermal transformation in low carbon steels | |
| Alternative Title | Effect of silicon and prior deformation of austenite on isothermal transformation in low carbon steels |
| Cai Minghui1; Ding Hua1; Zhang Jiansu2; Li Long3 | |
| 2009 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Volume | 22Issue:2Pages:100-109 |
| Abstract | Isothermal transformation (TTT) behavior of the low carbon steels with two Si contents (0.50 wt pct and 1.35 wt pct) was investigated with and without the prior deformation. The results show that Si and the prior deformation of the austenite have significant effects on the transformation of the ferrite and bainite. The addition of Si refines the ferrite grains, accelerates the polygonal ferrite transformation and the formation of M/A constituents, leading to the improvement of the strength. The ferrite grains formed under the prior deformation of the austenite become more homogeneous and refined. However, the influence of deformation on the tensile strength of both steels is dependent on the isothermal temperatures. Thermodynamic calculation indicates that Si and prior deformation reduce the incubation time of both ferrite and bainite transformation, but the effect is weakened by the decrease of the isothermal temperatures. |
| Other Abstract | Isothermal transformation (TTT) behavior of the low carbon steels with two Si con-tents (0.50 wt pct and 1.35 wt pct) was investigated with and without the prior deformation. The results show that Si and the prior deformation of the austenite have significant effects on the transformation of the ferrite and bainite. The addition of Si refines the ferrite grains, accelerates the polygonal ferrite transformation and the formation of M/A constituents, leading to the improvement of the strength. The ferrite grains formed under the prior deformation of the austenite become more ho-mogeneous and refined. However, the influence of deformation on the tensile strength of both steels is dependent on the isothermal temperatures. Thermodynamic calcu-lation indicates that Si and prior deformation reduce the incubation time of both ferrite and bainite transformation, but the effect is weakened by the decrease of the isothermal temperatures. |
| Keyword | Low carbon steel Si content Prior deformation of austenite Ferrite transformation Bainite transformation |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [Baoshan Iron and Steel Group] |
| CSCD ID | CSCD:3507202 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/147144 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.Baoshan Iron & Steel Co Ltd, Ctr Technology, Shanghai 201900, Peoples R China 3.Natl Institute Mat Sci, Tsukuba, Ibaraki 3050047, Japan |
| Recommended Citation GB/T 7714 | Cai Minghui,Ding Hua,Zhang Jiansu,et al. Effect of silicon and prior deformation of austenite on isothermal transformation in low carbon steels[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2009,22(2):100-109. |
| APA | Cai Minghui,Ding Hua,Zhang Jiansu,&Li Long.(2009).Effect of silicon and prior deformation of austenite on isothermal transformation in low carbon steels.ACTA METALLURGICA SINICA-ENGLISH LETTERS,22(2),100-109. |
| MLA | Cai Minghui,et al."Effect of silicon and prior deformation of austenite on isothermal transformation in low carbon steels".ACTA METALLURGICA SINICA-ENGLISH LETTERS 22.2(2009):100-109. |
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