检索结果-南通市图书馆

The determining role of carbon addition on mechanical performance of a non-equiatomic high-entropy alloy

Journal of Materials Science & Technology 2022年第15期110卷 167-177页

作者： Xiaolin Li Xiaoxiao Hao Chi Jin Qi Wang Xiangtao Deng Haifeng Wang Zhaodong Wang State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsNorthwestern Polytechnical UniversityXi’anShaanxi 710072PR China State Key Laboratory of Rolling and Automation Northeastern UniversityShenyangLiaoning 110819PR China

The mechanical properties and deformation mechanism of a C-doped interstitial high-entropy alloy(i HEA)with a nominal composition of Fe_(49.5)Mn_(29.7)Co_(9.9)Cr_(9.9)C_(1)(at.%)were *** excellent combination of strength and ductility was obtained by cold rolling and *** structure of the alloy is consisted of FCC matrix and randomly distributed Cr_(23)C_(6).For gaining a better understanding of deformation mechanism,EBSD and TEM were conducted to characterize the microstructure of tensile specimens interrupted at different *** low strain(2%),deformation is dominated by dislocations and their partial *** the strain increase to 20%,deformation-driven athermal phase transformation and dislocations slip are the main deformation *** at high strain of 35%before necking,deformation twins have been observed besides the HCP *** simultaneous effect of phase transformation(TRIP effect)and mechanical twins(TWIP effect)delay the shrinkage,and improve the tensile strength and ***'s more,compared with the HEA without C addition,the yield strength of the C-doped i HEA has been improved,which can be attributed to the grain refinement strengthening and precipitation *** with the lattice friction and solid solution strengthening,the theoretical calculated values of yield strength match well with the experimental results.

关键词： Interstitial high-entropy alloy Precipitation strengthening mechanical properties Phase transformation mechanical twins

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 annealing temperature on the microstructure and properties of the 25Mn-3Si-3Al TWIP steel

引用

International Journal of Minerals,Metallurgy and Materials 2009年第2期16卷 154-158页

作者： Zhen-li Mi Di Tang Hai-tao Jiang Yong-juan Dai Shen-sheng Li National Engineering Research Center for Advanced Rolling Technology University of Science and Technology Beijing Beijing 100083 China

Microstructures and mechanical properties of the 25Mn twinning induced plasticity （TWIP） steel at different annealing temperatures were investigated. The results indicated that when the annealing temperature was 1000℃, the 25Mn steel showed excellent comprehensive mechanical properties, the tensile strength was about 640 MPa, the yield strength was higher than 255 MPa, and the elongation was above 82%. The microstructure was analyzed by optical microscopy （OM）, X-ray diffraction （XRD）, and transmission electron microscopy （TEM）. Before deformation the microstructure was composed of austenitic matrix and annealing twins at room temperature; at the same time, a significant amount of annealing twins and stacking faults were observed by TEM. mechanical twins played a dominant role in deformation and as a result the mechanical properties were found to be excellent.

关键词： annealing temperature TWIP steel annealing twins mechanical twins

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

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：