<span id="fpn9h"><noframes id="fpn9h"><span id="fpn9h"></span>
<span id="fpn9h"><noframes id="fpn9h">
<th id="fpn9h"></th>
<strike id="fpn9h"><noframes id="fpn9h"><strike id="fpn9h"></strike>
<th id="fpn9h"><noframes id="fpn9h">
<span id="fpn9h"><video id="fpn9h"></video></span>
<ruby id="fpn9h"></ruby>
<strike id="fpn9h"><noframes id="fpn9h"><span id="fpn9h"></span>
Volume 36 Issue S1
Jul.  2021
Turn off MathJax
Article Contents
ZHAO Zheng-zhi, TONG Ting-ting, ZHAO Ai-min, YIN Hong-xiang, LI Shuang-jiao, LIANG Ju-hua. Effect of Mn and Si on the microstructure and mechanical properties of medium manganese hot-rolled high-strength steel[J]. Chinese Journal of Engineering, 2014, 36(S1): 133-139. doi: 10.13374/j.issn1001-053x.2014.s1.025
Citation: ZHAO Zheng-zhi, TONG Ting-ting, ZHAO Ai-min, YIN Hong-xiang, LI Shuang-jiao, LIANG Ju-hua. Effect of Mn and Si on the microstructure and mechanical properties of medium manganese hot-rolled high-strength steel[J]. Chinese Journal of Engineering, 2014, 36(S1): 133-139. doi: 10.13374/j.issn1001-053x.2014.s1.025

Effect of Mn and Si on the microstructure and mechanical properties of medium manganese hot-rolled high-strength steel

doi: 10.13374/j.issn1001-053x.2014.s1.025
  • Received Date: 2013-11-12
    Available Online: 2021-07-19
  • To study the effects of manganese and silicon contents on the microstructure and mechanical properties of medium manganese hot-rolled high-strength steel,different C-Si-Mn tested steels with different manganese and silicon contents were designed.The phase transformation point,microstructure,retained austenite content,and mechanical properties were measured and analyzed using dilatometric simulation,scanning electron microcopy,transmission electron microcopy,X-ray diffraction,and tensile testing.The obtained results indicate that the final microstructure of specimens can be greatly affected by the contents of manganese and silicon.The microstructure of low-silicon and high-manganese specimens consists of granular bainite. The microstructure of high-silicon and high-manganese specimens consists of bainite-ferrite,martensite,and retained austenite. The microstructure of high-silicon and low-manganese specimens consists of quasi-polygonal ferrite,bainite,martensite,and retained austenite. The results show that the best comprehensive mechanical properties of newly designed medium manganese hot-rolled high-strength steel are obtained in high Si and high Mn specimens. The ultimate tensile strength is in excess of 1200 MPa,the total elongation is 16%,and the product of tensile strength and elongation is about 20 GPa·%. The high strength and ductility of the tested high-silicon and high-manganese steel can be explained by the ultrafine grain microstructure and TRIP effect.

     

  • loading
  • 加載中

Catalog

    通訊作者: 陳斌, bchen63@163.com
    • 1. 

      沈陽化工大學材料科學與工程學院 沈陽 110142

    1. 本站搜索
    2. 百度學術搜索
    3. 萬方數據庫搜索
    4. CNKI搜索
    Article views (274) PDF downloads(16) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return
    <span id="fpn9h"><noframes id="fpn9h"><span id="fpn9h"></span>
    <span id="fpn9h"><noframes id="fpn9h">
    <th id="fpn9h"></th>
    <strike id="fpn9h"><noframes id="fpn9h"><strike id="fpn9h"></strike>
    <th id="fpn9h"><noframes id="fpn9h">
    <span id="fpn9h"><video id="fpn9h"></video></span>
    <ruby id="fpn9h"></ruby>
    <strike id="fpn9h"><noframes id="fpn9h"><span id="fpn9h"></span>
    www.77susu.com