ADAPTIVE PHASE IN MARTENSITIC-TRANSFORMATION

被引：14

作者：

KHACHATURYAN, AG ^{[1
]}

SHAPIRO, SM ^{[1
]}

SEMENOVSKAYA, S ^{[1
]}

机构：

[1] BROOKHAVEN NATL LAB,UPTON,NY 11973

来源：

MATERIALS TRANSACTIONS JIM | 1992年 / 33卷 / 03期

关键词：

MARTENSITE; HABIT PLANE; ACCOMMODATION STRAIN; NUCLEATION; STACKING FAULTS; INCOMMENSURATE STRUCTURES;

D O I：

10.2320/matertrans1989.33.278

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

It is shown that an adaptive transient phase can be formed along the martensitic transformation path to overcome thermodynamic and nucleation barriers caused by the transformation strain. A possible role of the adaptive phase in the thermal nucleation of the martensite is discussed. The structure of the adaptive phase is predicted from the strain accommodation condition. An example of the cubic --> tetragonal transformation is considered. The crystal lattice parameters of the adaptive phase are expressed through those of the parent cubic phase and tetragonal normal martensite. It is shown that the 7R martensite in beta'NiAl alloys is an example of the adaptive martensite.

引用

页码：278 / 281

页数：4

共 15 条

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