利用大样电解、金相观测、扫描电镜(SEM)和电子探针(EPMA)等手段,对X70管线钢铸坯中夹杂物的数量、粒径、形貌及组分进行了研究.结果表明:X70管线钢铸坯中夹杂物数量较多,粒径较大,且多为复合夹杂.针对大型夹杂物中硫化物、氧化物、硅铝酸盐和钙铝酸盐复合夹杂的特点,分析了铸坯中夹杂物的主要来源.
Utilizing the methods of sample-electrolysing, metallographic observation, SEM and EPMA, the quantity, dimension, morphologies and composition of non-metallic inclusions in X70 pipeline steel cast slab were investigated. It was suggested that there were larger amount of inclusions with larger diam-eter in the cast slab. Most of these inclusions were complex, such as sulfide, oxide, silicon aluminates and calcium aluminates inclusions. According to the characteristics of inclusions in the east slab, the ma-jor sources of different inclusions were analyzed and explored.
参考文献
| [1] | 尹成先,刘伟,兰新哲,霍春勇,冯耀荣.高强度天然气输送管抗氢致开裂试验研究[J].石油机械,2003(z1):8-11. |
| [2] | 张彩军,蔡开科,袁伟霞.管线钢生产中LF精炼炉的冶金效果分析[J].钢铁钒钛,2006(02):48-51. |
| [3] | 戴云阁,蔡锡年,郭仲文,杜德信.连铸坯中的非金属夹杂物[J].钢铁钒钛,1997(03):34. |
| [4] | 尹绍江;陈礼斌;王云阁.唐钢高强度高韧性管线钢X65的试制[A].辽宁沈阳,2007 |
| [5] | 杨伶俐 .管线钢钢水洁净度研究[D].北京:北京科技大学,2007. |
| [6] | 曹伟,王雨.20MnSi连铸方坯中夹杂物的研究[J].钢铁钒钛,2007(03):11-13. |
| [7] | 王立涛,李正邦,张乔英.高钢级管线钢的性能要求与元素控制[J].钢铁研究,2004(04):13-17. |
| [8] | 郑宏光,陈伟庆,李景捷.321不锈钢中大型夹杂物的研究[J].炼钢,2005(04):24-27. |
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