检索结果-南通市图书馆

Physical and chemical performances of high al steels

Journal of Central South University of Technology 2005年第4期12卷 385-388页

作者：王海川董元篪张文明王世俊周云 Anhui Provincial Key Laboratory for Metallurgical Engineering and Resource Recycling Anhui University of Technology Maanshan 243002 China Anhui

The effects of acid-soluble al content on the physical and chemical performances of high al steels were investigated. The results show that the distribution of acid-soluble al in steel substrate is uniform. With increasing al content, the strength and toughness of steels decrease a little but the hardness increases. The average yield strength and tensile strength are 425MPa and 570MPa, respectively, and the Rockwell hardness is 89.7. For non-al steels the average oxidation rate is up to 0.421mg/(cm2·h) at 1373K. For high al steels, when the mass fraction of al is less than 5%, there is a thinner gray oxidized layer on surface and the oxidation rate is high; when the mass fraction of al is more than 8.0%, the thin, close and yellow glossing film still exists, and the average oxidation rate is only 0.016mg/(cm2·h).

关键词： high al steel physical performance chemical performance microstructure

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

Effect of ferromanganese additions on non-metallic inclusion characteristics in TRIP steel

引用

Journal of Iron and steel Research International 2022年第9期29卷 1464-1473页

作者： Wei-sheng Wang Hang-yu Zhu Ming-ming Song Jian-li Li Zheng-liang Xue The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081HubeiChina

The inclusion characteristics in extra low-carbon ferromanganese(ELC-FeMn),low-carbon ferromanganese(LC-FeMn),mid-carbon ferromanganese(MC-FeMn),and high-carbon ferromanganese(HC-FeMn)were evaluated by scanning electron microscopy coupled with energy dispersive *** effect of FeMn alloys on the cleanliness of transformation-induced plasticity(TRIP)steel was studied based on laboratory-scale experiments and thermodynamic *** results show that the main inclusions in ELC-FeMn are MnO-MnS and MnS,and the dominant inclusions in LC-FeMn and MC-FeMn are MnO,MnO-SiO_(2),and MnO-SiO_(2)-*** inclusions in HC-FeMn are *** MnO-SiO_(2)inclusion,a certain number of al-,Si-,and Ti-containing inclusions and enrichment phases of Pb,Sn,and P are observed in *** FeMn alloy addition,the main inclusion in steel is *** alloying with the four different grades of FeMn alloy,the main inclusions in TRIP steel are al_(2)O_(3),AIN,MnS,alO3-AIN,AINMnS,and al_(2)O_(3)-*** MnO and SiO_(2)inclusions from FeMn alloys are not detected in TRIP steel.

关键词： Non-metallic inclusion Ferromanganese TRIP steel.Cleanliness FeMn alloy high al steel

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

Unexpected Effect of Nb Addition as a Microalloying Element on Mechanical Properties of δ-TRIP steels

引用

Journal of Iron and steel Research International 2016年第9期23卷 988-996页

作者： Sajad Gholami SHIRI Seyed Ahmad Jenabali JAHROMI Yahya PalIZDAR Majid BELBASI Department of Materials Science & Engineering School of Engineering Shiraz University Shiraz 115019 Iran Nanotechnology and Advanced Materials Department Materials and Energy Research Center Karaj 128747 Iran Department of Materials Engineering Islamic Azad University Central Tehran Branch Tehran 009821 Iran

The concept of microalloying was applied to the δ-TRIP （transformation-induced plasticity） steel to inves- tigate the feasibility of increasing the mechanical properties and understanding the effect of microalloying on the morphology and structure of the steel. A hot rolled δ-TRIP steel with three different contents of Nb （0, 0.03, 0.07 mass%） was subjected to the microstructural and mechanical examination. The high al and Si concentration in these steels guaranteed the presence of the considerable δ-ferrite phase in the microstructure after the casting and the subsequent hot rolling. The obtained results showed that Nb dramatically affects the microstructure the dynamic re- covery and recrystallization behavior, as well as the grain shape and thus the stability of austenite after the thermo- mechanical process of hot rolling. The results also revealed an unexpected effect of Nb on the mechanical properties. The addition of Nb to the δ-TRIP steel led to a significant decrease in the ultimate strength （from 1144 to 917 MPa） and an increase in ductility （from 24% to 28%）. These unconventional results could be explained by the change in the steel microstructure. The work-hardening＇behaviors of all samples exhibit three stages of the work-hardening rate evolution. At the stage 2, the work-hardening rate of the studied steels increased, being attributed to the TRIP effect and the transformation of austenite to martensite.

关键词： δ-TRIP steel Nb microalloying high al steel mechanical property work-hardening

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：