首页> 美国卫生研究院文献>Materials >The Impact of Interphase Precipitation on the Mechanical Behavior of Fire-Resistant Steels at an Elevated Temperature

【2h】

The Impact of Interphase Precipitation on the Mechanical Behavior of Fire-Resistant Steels at an Elevated Temperature

机译：相互沉淀对升温抗火钢力学行为的影响

代理获取

本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。

页面导航

摘要
著录项
相似文献
相关主题

摘要

In this study, we address the challenge of obtaining high strength at ambient and elevated temperatures in fire-resistant Ti–Mo–V steel with ferrite microstructures through thermo-mechanical controlled processing (TMCP). Thermally stable interphase precipitation of (Ti, Mo, V)C was an important criterion for retaining strength at elevated temperatures. Electron microscopy indicated that interphase precipitation occurred during continuous cooling after controlled rolling, where the volume fraction of interphase precipitation was controlled by the laminar cooling temperature. The interphase precipitation of MC carbides with an NaCl-type crystal structure indicated a Baker–Nutting (B–N) orientation relationship with ferrite. When the steel was isothermally held at 600 °C for up to 3 h, interphase precipitation occurred during TMCP with high thermal stability. At the same time, some random precipitation took place during isothermal holding. The interphase precipitation increased the elastic modulus of the experimental steels at an elevated temperature. It is proposed that fire-resistant steel with thermally stable interphase precipitation is preferred, which enhances precipitation strengthening and dislocation strengthening at elevated temperatures.

机译：在这项研究中，我们通过热电控制处理（TMCP）解决了铁氧体微观结构的耐火Ti-v钢的环境和耐火Ti-Mo-V钢中高强度的挑战。（Ti，Mo，V）C的热稳定间沉淀是保持温度升高的重要标准。电子显微镜表明，在控制轧制后连续冷却期间发生间隔沉淀，其中间沉淀的体积分数由层压冷却温度控制。用NaCl型晶体结构的MC碳化物的间隔沉淀表明了与铁氧体的面包屑（B-N）取向关系。当钢在600℃下等温持续3小时时，在TMCP中发生间隔沉淀，热稳定性高。与此同时，在等温控件期间发生了一些随机降水。间沉淀在升高的温度下增加了实验钢的弹性模量。提出，优选具有热稳定稳定沉淀的防火钢，这提高了升高温度下的沉淀强化和位错。

著录项

期刊名称 Materials
作者
Jinghua Cong; Jiangwen Li; Jiajie Fan; Pengcheng Liu; Raja Devesh Kumar Misra; Chengjia Shang; Xuemin Wang;
展开▼
作者单位

展开▼
年(卷),期 2020(13),19
年度 2020
页码 4294
总页数 13
原文格式 PDF
正文语种
中图分类外科学;
关键词
thermo-mechanical controlled processing (TMCP); yield strength; interphase precipitation; precipitation strengthening; dislocation strengthening; fire-resistance;

机译：热电控制处理（TMCP）;屈服强度;差异降水;降水强化;脱位加强;防火;

相似文献

外文文献
中文文献
专利

1. Effect of austenitic state before ferrite transformation on the mechanical behavior at an elevated temperature for seismic-resistant and fire-resistant constructional steel [J] . Jinghua Cong, Jiangwen Li, Jiajie Fan, Journal of Materials Research and Technology . 2021,第a期

机译：铁氧体转化前奥氏体状态对抗震耐火结构钢升温机械行为的影响
2. Mechanical properties of conventional structural steel and fire-resistant steel at elevated temperatures [J] . Kumar Waibhaw, Sharma Umesh Kumar, Shome Mahadev Journal of Constructional Steel Research . 2021,第Juna期

机译：升高温度常规结构钢和耐火钢的机械性能
3. Precipitation behavior of Ti-Nb-V-Mo quaternary microalloyed high strength fire-resistant steel and its influence on mechanical properties [J] . Xin Wang, Zhaodong Li, Shitong Zhou, Materials Science and Engineering . 2021,第Mara11期

机译：Ti-NB-V-Mo季微合金高强度耐火钢的沉淀性能及其对机械性能的影响
4. Thermomechanical Processing Effects on the Elevated Temperature Behavior of Niobium Bearing Fire-Resistant Steel [C] . R. W. Regier, J. G. Speer, D. K. Matlock, Steel Properties and Applications Conference . 2007

机译：热机械加工对耐火钢耐火钢化温度行为的影响
5. Mechanical behavior of sintered steel at elevated temperatures. [D] . Shan, Zhao Hui. 1997

机译：高温下烧结钢的机械性能。
6. Effect of Elevated Deformation Temperatures on Microstructural and Tensile Behavior of Si-Al Alloyed TRIP-Aided Steel [O] . Aleksandra Kozłowska, Adam Grajcar 2020

机译：升高温度对Si-Al合金触发钢微结构和拉伸行为的影响
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。
8. Mechanical Behavior of 18Ni (300) Maraging Steel During Rapid Heating and at Elevated Temperatures. [R] . austin, c. w. jr 1974

机译：18Ni（300）马氏体时效钢在快速加热和高温下的力学行为。

The Impact of Interphase Precipitation on the Mechanical Behavior of Fire-Resistant Steels at an Elevated Temperature

摘要

著录项

相似文献

相关主题

期刊订阅