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P91热轧无缝钢管中δ铁素体的研究

Steel Pipe(2011)

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Abstract
钢中存在δ铁素体不仅会影响钢管的性能,还会使钢管产生内、外折缺陷。分析了P91热轧无缝钢管中影响δ铁素体形成的因素及其对热轧P91无缝钢管质量的影响,提出了通过优化成分设计,控制钢锭成分偏析和热轧穿孔温度等措施避免P91热轧无缝钢管中δ铁素体形成的建议。
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Key words
Heating temperature,δ ferrite,Chemical segregation,The P91 hot-rolled seamless steel tube
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