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晶体的非小晶面(nf),小晶面(f)形成规律是结晶学研究领域的重要内容.由于结晶机制直接影响着材料的组织性能,因此能否实现小晶面生长向非小晶面生长转变一直是人们所关注的问题.现已发现,当熔体的过冷度足够大时可以导致晶体的小晶面-非小晶面转变.其它因素引起的这种转变尚未见过可靠的报道,本文发现低熔点难溶杂质可以引起非小晶面-小晶面共晶合金中小晶面相的生长机制发生改变.
The formation of non-crystallographic (nf) and crystallographic (f) planes is an important part of the field of crystallography.As the crystallization mechanism directly affects the microstructure and properties of the material, Surface growth changes have been a matter of concern, and it has been found that when the degree of undercooling of the melt is large enough, it can lead to a small facet-non-facet crystal transition of the crystal, a shift that has not been seen by other factors Reported that the low melting point insoluble impurities can be found in the non-small plane - small plane eutectic alloy small crystal plane growth mechanism changes.