With the increase of holding time, the hardness of quasi-K445 superalloy firstly increases then decreases, and the macrosegregation firstly alleviates then aggravates.
5.随保温时间的延长,类K445合金的硬度先升高后降低,宏观偏析程度先减小后增大。
参考来源 - 类K445镍基合金的制备及组织与性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The macrosegregation is formed in central area of the billet resulted from the continuous enrichment of solute during solidification process.
随凝固的进行，液相中的溶质不断富集，最终在铸坯的中心区域形成宏观偏析。
In order to enhance the uniformity of slab solidification structure and reduce macrosegregation, a self consumption of vibration excitation of nuclear technology in liquid steel was proposed.
为了提高铸坯凝固组织的均匀性，减轻宏观偏析，提出了自耗式振动激发金属液形核技术。
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