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钛板的屈服应力与r值之间的定量关系

周维贤

金属学报

在实验数据的基础上,本文阐述了钛板的R值与r值是不等的;籍新近提出的塑性异性任意次方式屈服函数,对钛板的屈服应力与r值之间的关系进行了总体考察,获得了它们之间的最佳关系式,得出其屈服函数的次方值取6—8较合适;并据此推荐出一个压力容器强度计算式。

关键词: 钛板 , yield stress , r-value , anisotropy

Fe-Cr-Al合金退火过程中组织和性能的演变

刘胜 , 米振莉 , 唐荻 , 江海涛 , 焦竞仪

材料热处理学报

采用电子背散射衍射技术(EBSD)对Fe-Cr-Al合金在退火过程中的组织演变规律进行了研究,分析了退火时间对晶界分布、微观织构和性能的影响.结果表明:退火初期合金组织发生回复过程,晶界以小角晶界为主,织构为典型的立方晶体形变织构{001} 〈110〉；退火时间在3～ 15 min内,组织发生再结晶...

关键词: Fe-Cr-Al合金 , 组织演变 , EBSD , r值

Research on Deformation, Texture and Properties of IF Steel in Multiple Rolling Technology

Jinxia LI , Xianghua LIU , Guodong WANG

材料科学技术（英文）

The relationships among the deformation, texture and deep drawing properties of IF steel were investigated. By adopting double cold rolling (DCR) technology, the deep drawing property has been developed evidently. With the aid of orientation distribution function (ODF) analysis, it was found that th...

关键词: Texture , null , null , null

QUANTITATIVE RELATIONSHIP BETWEEN YIELD STRESS AND r-VALUE OF Ti SHEET

ZHOU Weixian Northwestern Polytechnical University , Xi′an , China

金属学报(英文版)

Based on the experimental data,it was clarified that the plastic strain ratio R-value is not equal to Hill's r-value for Ti sheet.From the non-quadratic orthotropic yield function pro- posed recently by the author,an optimal expression between yield stress and r-value for Ti sheet was developed on o...

关键词: Ti sheet , null , null , null

EFFECT OF CHEMICAL COMPOSITION AND PROCESSES ON THE TEXTURE OF HOT-ROLLED DEEP DRAWING STEEL SHEET

Y. Chen

金属学报(英文版)

A hot-rolled deep drawing (HDD) steel with high r-value and uniform distribution of{ 111} texture in thickness was developed by hot rolling in ferrite region with lubricatingbetween the roller and the steel. The experimental results show that the carbon contentand finish rolling temperature have sig...

关键词: ultra low carbon , null , null , null , null

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