检索结果-南通市图书馆

crystallography of the martensitic transformation between Ni_2In-type hexagonal and TiNiSi-type orthorhombic phases

Journal of Materials Science & Technology 2022年第9期104卷 59-66页

作者： Tingting Zhang Yuanyuan Gong Bin Wang Dongyu Cen Feng Xu MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology Nanjing University of Science and TechnologyNanjing 210094China

MnMX(M=Co or Ni,X=Si or Ge)alloys,experiencing structural transformation between Ni_(2) In-type hexagonal and TiNiSi-type orthorhombic phases,attract considerable attention due to their potential applications as room-temperature solid *** lots of studies have been carried out on how to tune this transformation and obtain large entropy change in a wide temperature region,the crystallography of this martensitic transformation is still *** biggest obstacle for crystallography investigation is to obtain a bulk sample,in which hexagonal and orthorhombic phases coexist,because the MnMX alloys will fragment into powders after experiencing the *** this reason,we carefully tune the transformation temperature to be slightly below 300 *** that case,a bulk sample with small amounts of orthorhombic phases distributed in hexagonal matrix is *** importantly,there are no cracks between the two *** facilities us to investigate the microstructure using electron *** obtained results indicate that the orientation relationship between hexagonal and orthorhombic structures is[4223]_(h)//[120]_(o)&(0110)_(h)//(001)_(o) and the habit plane is{2113.26}_(h).WLR theory is also adopted to calculate the habit *** calculated result agrees well with the measured *** work reveals the crystallography of hexagonal-orthorhombic transformation for the first time and is helpful for understanding the transformation-associated physical effects in MnMX alloys.

关键词： martensitic transformation MnMX alloys Orientation relationship Habit plane crystallography of martensitic transformation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Comment on shear-rotation mechanism for martensitic transformations

引用

Progress in Natural Science:Materials International 2004年第10期 77-81页

作者： CHEN Zi and GUO Zhenghong (School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai200030,China)

The“shear-rotation mechanism”for f.c.c.→b.c.c.(b.c.t.)martensitic transformation is further discussed in this ***“shear-rotation mechanism”involves some valuable ideas which is based on the Nishiyama’s model,the concept of“rota-tion”in“shear-rotation mechanism”may not be consistent with the general definition in *** addition,the mathematical expression of this mechanism is ***,a detailed mathematical analysis given in the present paper indicates that the nature of“shear-rotation mechanism”is equivalent to the first two steps of Nishiyama’s model,*** is an invariant line strain(ILS)rather than an invariant plane strain(IPS).In other words,it is difficult to obtain the IPS based on the“shear-rotation mechanism”even though the isotropic contraction is ***,a new method should be developed to explain the IPS based on Nishiyama’s model.

关键词： crystallography of martensitic transformation shear-rotation mechanism Nishiyama’s model invariant plane strain

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：