检索结果-南通市图书馆

fatigue softening BEHAVIOR AND ITS THRESHOLD OF COLD STRAINED POLYCRYSTALLINE Cu

Acta Metallurgica Sinica(English Letters) 1991年第2期4卷 129-134页

作者： FAN Quncheng CHAI Huifen TONG Mingxin Xi′an Jiaotong University,Xian,Chain FAN Quncheng Lecturer Dept.of Materials Sci.and Eng.,Xi′an Jiaotong University,Xi′an 710049

The symmetrical push-pull fatigue tests in load control were carried out for prestrained polycrystalline *** change in mechanical behaviour during cycling was recorded in detail and the effect of various degree of prestraining on saturated behavior and dislocation structure was *** results show that the cyclic saturation state is still history-dependent at low stress amplitude and the dislocation structure after fatigue exhibits an “inheritance” be- *** level of softening was calculated at various load amplitudes and a softening threshold of about 0.43 to 0.45 of the flow stress was *** is the same as that of low carbon *** stages of cyclic processes and their mechanism have been described.

关键词： polycrystalline Cu fatigue softening dislocation

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

LOW ENERGY DISLOCATION STRUCTURES DUE TO fatigue softening

引用

Acta Metallurgica Sinica(English Letters) 1989年第6期2卷 422-427页

作者： LAIRD Campell University of Pennsylvania U.S.A

The evolution of dislocation structures in 6% prestrained steel 1018 during fatigue has been studied by *** dislocations are quite movable,the loose cells quickly change to “checkboard”structures,in which the main cell walls lie about {100}.Then,the low energy dislocation structures *** walls and abyrinth structures are *** characteristic of labyrinth and the orientation of dipolar walls are quite similar to fcc *** indicates the energy state of system and the moving ability of dislocations are important factors affect- ing softening process,rather than the slip geometric characteristic of dislocations and details of *** decreasing in misorientation between adjoining cells and internal stress are discussed.

关键词： steel 1018 fatigue softening dislocation configuration

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

EFFECTS OF SLIP MODE ON CYCLIC BEHAVIOR OF PRESTRAINED MATERIALS

引用

Acta Metallurgica Sinica(English Letters) 1993年第5期6卷 326-331页

作者： CHAI Huifen RUAN Zheng FAN Quncheng (Xi’an Jiaotong University,Xi’an,China CHAI Huifen,associate professor,Department of Materials,Xi’an Jiaotong University,Xi’an 710049,China

The cyclic behaviours of two prestrained materials with different slip modes have been com- *** the analysis of hysterisis loops,it is suggested that the decrease in back stress dominates the cyclic process of Cu-Zn alloy with planar slip mode,while the decrease in frictional stress is the main factor affecting the behaviour of Cu with wavy slip *** re- lation between the dislocation configuration and internal stress has been also *** means of the relation just mentioned,the variations of dislocation configuration before and after fatigue of the two materials,the differences in their softening mechanism and mechani- cal behaviour could be interpreted.

关键词： slip mode fatigue softening hysteresis loop internal stress

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

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

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

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：