冷却速率对管线钢中非金属夹杂物成分演变的影响
Effect of Cooling Rate on the Evolution of Nonmetallic Inclusions in a Pipeline Steel
冷却速率对管线钢中非金属夹杂物成分演变的影响 |
| 张月鑫, 王举金, 杨文, 张立峰 |
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Effect of Cooling Rate on the Evolution of Nonmetallic Inclusions in a Pipeline Steel |
| ZHANG Yuexin, WANG Jujin, YANG Wen, ZHANG Lifeng |
| 图2 不同冷却速率下管线钢中夹杂物的成分分布 |
| Fig.2 Compositions of inclusions at CaO-Al2O3-CaS (a1-g1) and CaO-Al2O3-MgO (a2-g2) ternary composition diagrams in the blank sample (a1, a2), and pipeline steels at cooling rates of 800oC/min (b1, b2), 600oC/min (c1, c2), 400oC/min (d1, d2), 200oC/min (e1, e2), 100oC/min (f1, f2), and 5oC/min (g1, g2) (Dmax—maximum diameter of inclusions, Dave—average diameter of inclusions. When CaS% > MgO%, inclusions were projected into CaO-Al2O3-CaS ternary composition diagram, otherwise inclusions were projected into CaO-Al2O3-MgO ternary composition diagram. Each circle in the figure represents an inclusion, and the size of the circle represents the diameter of the inclusion) |
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