A Novel 1500MPa Economic High Strength Steel

机译：新型1500MPa经济高强度钢

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摘要

The ultimate tensile strength of a novel bainite/martensite duplex-phase high strength steel (C-Si-Mn-Cr alloy) is greater 1500MPa after austenitizing and then air cooled and tempered, it has better combination of strength and toughness particularly, and the fatigue limit, fatigue threshold, corrosion fatigue threshold and stress corrosion intensity factor is higher, simultaneously corrosion fatigue and stress corrosion crack propagation rates are lower, which show that the steel has higher delay fracture resistance . Existing the films of residual austenite with tempering, mechanical and chemical stabilities in it is a important causation, and the carbide-free lower bainite precipitated beforehand in the austenite grains makes subsequently transformed martensites fine, which is the another reason for the improvement of properties.

机译：新型贝氏体/马氏体双相高强度钢（C-Si-Mn-Cr合金）在奥氏体化后再风冷回火的极限抗拉强度大于1500MPa，特别是具有更好的强度和韧性组合，并且疲劳极限，疲劳阈值，腐蚀疲劳阈值和应力腐蚀强度因子较高，同时腐蚀疲劳和应力腐蚀裂纹扩展率较低，这表明钢具有较高的抗延迟断裂性能。现有的具有回火，机械和化学稳定性的残余奥氏体膜是重要的原因，事先在奥氏体晶粒中析出的无碳化物的下部贝氏体使随后的相变马氏体变细，这是改善性能的另一个原因。

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来源
《International Conference on Processing amp; Manufacturing of Advanced Materials Pt.2; Jul 7-11, 2003; Leganes, Madrid, Spain》|2003年|p.1475-1480|共6页
会议地点 Madrid(ES);Madrid(ES)
作者
J.L.Gu; D.Y.Wei; K.D.Chang; D.Y. Liu; H.S.Fang; B.Z Bai; Z.G.Yang; W.Z.Zhang;
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作者单位

Department of Materials Science and Engineering, Laboratory of the Advanced Materials, Materials Research Center, Tsinghua University, Beijing, P.R. China, 100084;

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原文格式 PDF
正文语种 eng
中图分类一般工业技术;
关键词
bainite/martensite duplex-phase high strength steel; fatigue; corrosion fatigue; stress corrosion; residual austenite;

机译：贝氏体/马氏体双相高强度钢；疲劳；腐蚀疲劳；应力腐蚀；残余奥氏体;

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1. Effects of stress field and addition of V on diffusion of hydrogen in steels at the 1500MPa strength level (Visualization of hydrogen in steels with hydrogen microprint technique-4) [J] . Nagao A. 材料とプロセス: 日本鉄鋼協会講演論文集 . 2000,第3期

机译：应力场和V的添加对强度在1500MPa时钢中氢扩散的影响（使用氢显微照片技术4可视化钢中氢）
2. Effects of stress field and addition of V on diffusion of hydrogen in steels at the 1500MPa strength level (Visualization of hydrogen in steels with hydrogen microprint technique-4) [J] . Nagao A. 材料とプロセス: 日本鉄鋼協会講演論文集 . 2000,第3期

机译：应力场对1500MPA强度水平钢氢气扩散的影响（用氢微胶体技术钢氢可视化 - 4）
3. Hydrogen Embrittlement of an Ultrafine Fibrous Grain Structure Steel with 1500MPa Strength Level [J] . Y. NIE, Y. KIMURA, T. INOUE 材料とプロセス: 日本鉄鋼協会講演論文集 . 2009,第1期

机译：具有1500MPa强度水平的超细纤维晶粒结构钢的氢脆化合物
4. A Novel 1500MPa Economic High Strength Steel [C] . J.L.Gu, D.Y.Wei, K.D.Chang, International Conference on Processing Manufacturing of Advanced Materials . 2003

机译：一种新型1500MPA经济高强度钢
5. Bond strength of deformed reinforcing bars in plain high-strength concrete and high-strength steel fibre-reinforced concrete. [D] . Berube, Frederic-Simon. 2003

机译：普通高强度混凝土和高强度钢纤维增强混凝土中变形钢筋的粘结强度。
6. The Influence of Steel Fiber Tensile Strengths and Aspect Ratios on the Fracture Properties of High-Strength Concrete [O] . Won-Chang Choi, Kwon-Young Jung, Seok-Joon Jang, 2019

机译：钢纤维拉伸强度和长宽比对高强度混凝土断裂性能的影响
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。

A Novel 1500MPa Economic High Strength Steel

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