金属学报  1984, Vol. 20 Issue (4): 247-382

论文 本期目录 | 过刊浏览 |

Ce对高锰钢奥氏体结晶形貌及Mn的枝晶偏析的影响

胡汉起;钟雪友;力航

北京钢铁学院;北京钢铁学院;北京钢铁学院

INFLUENCE OF Ce ON CRYSTAL MORPHOLOGY OF AUSTENITE AND DENDRITIC SEGREGATION OF Mn IN HIGH-Mn STEEL

HU Hanqi; ZHONG Xueyou; LI Hang (Beijing University of Iron and Steel Technology) (Manuscript received 23 September; 1982; revised manuscript 15 November; 1983)

胡汉起;钟雪友;力航. Ce对高锰钢奥氏体结晶形貌及Mn的枝晶偏析的影响[J]. 金属学报, 1984, 20(4): 247-382.
, , . INFLUENCE OF Ce ON CRYSTAL MORPHOLOGY OF AUSTENITE AND DENDRITIC SEGREGATION OF Mn IN HIGH-Mn STEEL[J]. Acta Metall Sin, 1984, 20(4): 247-382.

摘要 参考文献 相关文章 Metrics 全文: PDF(1412 KB)   摘要: 作者对铸造用高锰钢采用定向凝固工艺获得了稳定的奥氏体胞晶组织。发现随着Ce量的增加,胞晶前沿转向枝晶发展,出现游离晶,使柱状晶区缩短。与此同时,用电子探针微区分析考察了Ce对高锰钢中Mn在胞晶、柱状树枝晶及等轴晶内偏析的定量影响。作者考虑到固相反扩散这一因素,导出了高锰钢中Mn元素的溶质分布表达式,通过对实验数据进行理论分析,发现溶质平衡分配系数K_0是影响枝晶偏析的决定性因素。 Abstract：Samples of casting high-Mn steel with structure of stable austenitic cells were prepared by strictly controlled directional solidification. With the increasing of the Ce content, the cell structure changes gradually in the front of crystals into dendrites and then into separate crystals, so as to narrow the columnar crystal region. An EPMA was performed quantitatively on the influence of Ce upon the Mn segregation in cellcrystals, columnar and Equiaxial dendrites of high-Mn steel. Considering the solute diffusion in solid state together with the previous works, an expression of Mn distribution in high-Mn steel was approached. After quite a few theoretical analysis on the experimental data, it seems to be indicated that the solute equilibrium partition coefficient, K_0, is the determinant factor of influence on dendritic segregation. 收稿日期: 1984-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 胡汉起 钟雪友 力航 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I4/247 1 塗嘉夫;大橋徹郎;広本健,北村修,鉄と鋼,66(1980) ,618． 2 刘树模,稀土元素对钢的枝晶偏析的影响,未发表资料,1979． 3 大橋徹郎;広本健,藤井博務;塗嘉夫;浅野鋼一,铁と鋼,62(1976) ,614． 4 Li Wernbin; Liu Zhengqun; Yang Quoping; Li Chenghsiu; Zhang Bin, Seventh International Conference on Internal Frtction and Ultrasonic Attenuation in Solids, Eds W. Benoit; G. Gremaud, Ecole Polytechnique Federade de Lausanne Instittute de Genie Atomique Ecublens, Lausanne Switzerland, 6-9, July, 1981, Part Ⅰ, C5-463 5 北京钢铁学院物化教研室,钢铁,(1982) ,№ 2,1． 6 钟雪友;胡汉起;刘昌明,高锰钢中Ce的溶液分配系数K_0的测定及Ce对Mn,Si,K_0的影响,北京钢铁学院资料室,1982． 7 Bower, T. F.; Brody, H. D.; Flemings, M. C., Trans. Metall. Soc. AIME, 236 (1966) , 624． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed