检索结果-南通市图书馆

Effect of linear friction welding process on microstructure evolution,mechanical properties and corrosion behavior of gh4169 superalloy

引用

Chinese Journal of Aeronautics 2024年第6期37卷 504-520页

作者： Yu SU Xiawei YANG Tingxi MENG Dong WU Rui XU Haiyu XU Wenya LI Shuo YIN State Key Laboratory of Solidification Processing School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Department of Mechanical Manufacturing&Biomedical EngineeringParsons BuildingTrinity College DublinThe University of DublinDublin 2Ireland

Linear Friction Welding(LFW)technology was used to realize the welding of gh4169 superalloy,and the effect of welding parameters on the microstructure,mechanical properties and corrosion behavior of the joint was *** results show that there is a positive correlation between the weld hardness and the tensile *** the gradual increase of heat input and welding pressure,the joint quality is gradually improved,but the heat affected zone is not significantly *** smaller the grain size of the weld,the higher the strength and plasticity of the *** the increase of the joint shortening amount,the corrosion resistance of the weld first gradually ***,when the shortening reaches a certain level,the corrosion resistance of the joint becomes little *** the increase of solution temperature,the corrosion current density increases and the polarization impedance *** higher the corrosion temperature,the worse the corrosion resistance of the *** is no significant correlation between the joint strength and the corrosion *** corrosion resistance of the joint can be enhanced without changing the joint mechanical properties by reducing the welding frequency and amplitude or increasing the welding pressure.

关键词： Linear FrictionWelding(LFW) gh4169 superalloy Microstructure Mechanical properties Corrosion behavior

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Stress Relaxation Behavior of gh4169 superalloy

引用

Journal of Donghua University(English Edition) 2015年第1期32卷 58-61页

作者：常鹏鹏孔永华陈国胜谢黎雄朱世根 College of Mechanical Engineering Donghua University Baosteel Group Special Steel Branch Guizhou Liyang Aero Engine Corporation

gh4169 superalloy stress relaxation test was investigated to study its characteristics of stress relaxation curves at various temperatures( 550,650,and 750 ℃). These curves presented jointly two distinct stages,the stage of inner stress relaxing quickly,and the stage of inner stress relaxing slowly and closing to the stress relaxation limit. And these curves obtained could be fitted by second order exponential decay function well. Based on the experimental stress relaxation curves,the relationship between stress relaxation rate and time were derived, which showed that the higher relaxation temperature and the greater initial rate of stress relaxation. The whole process presented two different stages,the stage of stress relaxation rate falling rapidly and the stage of stress relaxation rate slowing down and tending to be constant. The relation curve between creep strain rate and stress of gh4169 superalloy can be divided into three stages,low stress stage,transition stage,and high stress *** the high stage and the low stage present linear correlation.

关键词： gh4169 superalloy stress relaxation experiment second order exponential decay function

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

Detection and analysis of basic variables during linear friction welding of gh4169 superalloy

引用

China Welding 2012年第2期21卷 13-16页

作者：马铁军汤化伟李文亚张勇 State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of Friction Welding Technologies Northwestern Polytechnical University Xi' an 710072.

By monitoring the line voltage and current of the driving motor during linear friction welding （ LFW） of gh4169 superalloy, the frictional power of the rubbing interface between two components to be joined was detected. The data was recorded by a data acquisition card and processed by the LabVIEW software. By analyzing the evolution of frictional power, the joint formation mechanism was discussed. The curves of the measured basic variables （frictional power, axial shortening, interfacial temperature and axial pressure） reflected the characteristics of the LFW process and offered an effective way for welding parameter optimization.

关键词： linear friction welding frictional power gh4169 superalloy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Kinematics and Dynamics Model of gh4169 Alloy for Thermal Deformation

引用

Journal of Iron and Steel Research(International) 2010年第7期17卷 75-78页

作者： WANG Zhong-tang ZHANG Shi-hong CHENG Ming LI De-fu YANG Xiao-hong School of Materials Science and Engineering Shenyang Ligong University Shenyang 110159 Liaoning China Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 Liaoning China General Research Institute for Nonferrous Metals Beijing 100088 China

The stress-strain curves and microstructure properties of superalloy gh4169 was tested by thermal simulation experiment with different parameters,which were deformation temperature and strain rate and strain and original grain *** influence of technology parameters on crystal grain size of dynamic recrystallization（DRC）was *** kinematics model of superalloy gh4169 was established,in which the relation between grain size of dynamic recrystallization and function Z（Zener-Hollomon）and parameters was *** dynamics model of superalloy gh4169 was put forward,which described the relation between the quantity of dynamic recrystallization and function Z and *** research results showed that the grain size of dynamic recrystallization increased with increasing the temperature and decreasing the strain *** the grain size of DRC bore no relationship to original grain *** the quantity of dynamic recrystallization decreased with increasing the original grain size.

关键词： gh4169 superalloy kinematics model dynamics model thermal deformation

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

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

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：