Preparation of Inoculants Used in Superalloy and Analysis of the Atomic Matching Models
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2013年第4期
论文作者：Fu Wang,Jun Zhang Taiwen Huang Lin Liu Hengzhi Fu
文章页码：387 - 392
摘 要：<正>The mechanisms of grain refinement were investigated on two kinds of grain refiners used in Ni—Fe based superalloys and complete atomic matching modes were constructed in this study.It is found that there are at least three matching crystal planes having the small lattice disregistry between the refiner and the nucleated phase,which can lead to grain refinement of y matrix.The results indicate that the（0001）,（01—10） planes of CrFeNb have a fine crystallographic matching relationship with the（111）,（110） planes ofγmatrix.The disregistry of（0001）CrFeNb//（111）γ,（0110）CrFeNb//（111）γand（0110）CrFeNb//（110）γis 3.34%,6.60%and 5.90%, respectively.The（0001）,（0110） planes of Co3FeNb2 and（111）,（110） planes ofγmatrix also have this relationship.The disregistry of（0001）Co3FeNb2//（111）γ,（0001）Co3FeNb2//（110）γ,（0110）Co3FeNb2//（111）γand （0110）Co3FeNb2//（110）γis 4.45%,9.35%,8.38%and 6.12%,respectively.
Fu Wang,Jun Zhang，Taiwen Huang，Lin Liu，Hengzhi Fu
State Key Laboratory of Solidification Processing,Northwestern Polytechnical University
摘 要：<正>The mechanisms of grain refinement were investigated on two kinds of grain refiners used in Ni—Fe based superalloys and complete atomic matching modes were constructed in this study.It is found that there are at least three matching crystal planes having the small lattice disregistry between the refiner and the nucleated phase,which can lead to grain refinement of y matrix.The results indicate that the（0001）,（01—10） planes of CrFeNb have a fine crystallographic matching relationship with the（111）,（110） planes ofγmatrix.The disregistry of（0001）CrFeNb//（111）γ,（0110）CrFeNb//（111）γand（0110）CrFeNb//（110）γis 3.34%,6.60%and 5.90%, respectively.The（0001）,（0110） planes of Co3FeNb2 and（111）,（110） planes ofγmatrix also have this relationship.The disregistry of（0001）Co3FeNb2//（111）γ,（0001）Co3FeNb2//（110）γ,（0110）Co3FeNb2//（111）γand （0110）Co3FeNb2//（110）γis 4.45%,9.35%,8.38%and 6.12%,respectively.
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