Flow Behavior and Mechanical Properties of a High Silicon Steel Associated with Dynamic Strain Aging

J. M. Akhgar; S. Serajzadeh

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Flow Behavior and Mechanical Properties of a High Silicon Steel Associated with Dynamic Strain Aging

机译：动态应变时效处理高硅钢的流动行为和力学性能

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Flow behavior of two grades of steel including a high silicon (HS) steel and a plain low carbon steel as the reference were considered in this work. Tensile testing at temperatures varying between 25 and 550 °C and different strain rates in the range of 4 × 10−5 to 0.1 s−1 were conducted and the mechanical properties, such as elongation at fracture point and strain rate sensitivity were then determined. It is observed that for both steels, dynamic strain aging occurs in the employed deformation conditions, however, the region of serrated flow and the type of the serration were somehow different. For the case of the HS steel, the serrated flow region is shifted to the higher temperatures and also, the activation energy for appearance of dynamic strain aging increases as well.

机译：在这项工作中考虑了包括高硅（HS）钢和普通低碳钢在内的两种等级钢的流动行为。在25至550°C的温度范围内以及在4×10−5 至0.1 s-1 范围内的不同应变速率下进行拉伸测试，并测试了力学性能，例如断裂点的伸长率然后确定应变率敏感性。可以看出，对于两种钢，在采用的变形条件下都会发生动态应变时效，但是，锯齿状流动的区域和锯齿的类型有所不同。对于HS钢而言，锯齿状的流动区域转移到了较高的温度，并且，动态应变时效出现的活化能也增加了。

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来源
《Journal of Materials Engineering and Performance》 |2012年第9期|p.1919-1923|共5页
作者
J. M. Akhgar; S. Serajzadeh;
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作者单位

Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., PO Box 11155-9466, Tehran, Iran;

Department of Materials Science and Engineering, Sharif University of Technology, Azadi Ave., PO Box 11155-9466, Tehran, Iran;

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正文语种 eng
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dynamic strain aging; high silicon steel; tensile test;

机译：动态应变时效高硅钢拉伸试验;

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专利

1. Flow Behavior and Mechanical Properties of a High Silicon Steel Associated with Dynamic Strain Aging [J] . J. M. Akhgar, S. Serajzadeh Journal of Materials Engineering and Performance . 2012,第9期

机译：与动态应变时效相关的高硅钢的流动行为和力学性能
2. Mechanical Properties in Structural Steels under High Strain Rate Deformation (Deformation Behavior of Structural Steels Under Dynamic Loading-1) [J] . Tsunemi Wada 材料とプロセス: 日本鉄鋼協会講演論文集 . 1996,第6期

机译：高应变率变形下结构钢的力学性能（动态载荷-1下结构钢的变形行为）
3. Mechanical Properties in Structural Steels under High Strain Rate Deformation (Deformation Behavior of Structural Steels Under Dynamic Loading-1) [J] . Tsunemi Wada 材料とプロセス: 日本鉄鋼協会講演論文集 . 1996,第6期

机译：高应变率变形下结构钢的力学性能（动态载荷-1下结构钢的变形行为）
4. WES 2808 for Brittle Fracture Assessment of Steel Components Under Seismic Conditions Part II: Change in Mechanical Properties of Structural Steels by Pre-strain and Dynamic Loading [C] . Shimada Y., Shimanuki H., Igi S., European Conference on Fracture . 2016

机译：WES 2808用于钢结构脆性断裂评估在地震条件下，第II部分：通过菌株和动力载荷的结构钢的力学性能变化
5. Effects of temperature, strain rate and silicon content on dynamic strain ageing of modified chromium-molybdenum steel. [D] . Kumar, Pankaj. 2007

机译：温度，应变速率和硅含量对改性铬钼钢动态应变时效的影响。
6. The Influence of Microstructure on the Mechanical Properties and Fracture Behavior of Medium Mn Steels at Different Strain Rates [O] . Zheng Wang, Juanping Xu, Yu Yan, 2019

机译：显微组织对不同应变速率下中锰钢力学性能和断裂行为的影响
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。

Flow Behavior and Mechanical Properties of a High Silicon Steel Associated with Dynamic Strain Aging

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