论文部分内容阅读
本文采用了兼顾化学成分和热加工温度的方法来预测δ-F的形成,通过降低铁素体形成元素的含量,提高奥氏体形成元素的含量,从而获得较低的铬当量,减少了δ-F相的形成。证实了化学成分C、N、V对δ-F的影响起决定作用,有效地降低了δ-F相的含量,将δ-F相控制在5%以内,从而改善了材料0Cr17Ni4Cu4Nb的力学性能,提高其使用寿命,为新型叶片钢的开发设计、制造使用提供了可靠的参考数据。
In this paper, the formation of δ-F is predicted by both chemical composition and thermal processing temperature. The formation of δ-F is predicted by decreasing the content of ferrite-forming elements and increasing the content of austenite-forming elements, resulting in lower chromium equivalent, Formation of the -F phase. It is confirmed that the influence of chemical composition C, N, V on δ-F plays a decisive role, the δ-F phase content is effectively reduced, and the δ-F phase is controlled within 5%, thereby improving the mechanical properties of the material 0Cr17Ni4Cu4Nb. Improve its service life, provide a reliable reference data for the development, design and manufacturing of the new blade steel.