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The effect of combined additions of Ti and Nb on structure and strength of cast HH steel after aging at 1173K for 1000h

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Authors The effect of combined additions of Ti and Nb on structure and strength of cast HH steel after aging at 1173K for 1000h

  V Javaheri - Department of Material Engineering, Iran University of Industries and Mines, Tehran, Iran
  M Tamizifar - Department of Material Engineering, Iran University of Science and Technology
F Shahri -
  M Mohammadnejad - Department of Material Engineering, Isfahan University of Technology, Isfahan, Iran

Abstract:

Cast heat-resistant HH stainless steels are particularly suitable for application where service conditions comprise high temperature; thus, they are extensively used in metallurgical furnace. The demand for better performance has motivated developments in these steel. In this work Ti and Nb was added to cast HH steel simultaneously. It was observed that its presence increased the level of fragmentation of the chromium carbides, a positive aspect for mechanical properties. Microstructures and mechanical properties confirmed that G phase transformation depend on Nb/Ti ratio, %W, in HHmodified with Nb and Ti.

Keywords:

Heat resistant Steel, Chromium Carbide, G-Phase, Niobium, Titanium

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https://www.civilica.com/Paper-IMES06-IMES06_185.html
COI code: IMES06_185

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Javaheri, V; M Tamizifar; F Shahri & M Mohammadnejad, 2012, The effect of combined additions of Ti and Nb on structure and strength of cast HH steel after aging at 1173K for 1000h, 1st International and 6th Joint Conference of Iranian Society of Metallurgical Engineers and the scientific community of Casting, انجمن علمي ريخته گري ايران, https://www.civilica.com/Paper-IMES06-IMES06_185.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Javaheri, V; M Tamizifar; F Shahri & M Mohammadnejad, 2012)
Second and more: (Javaheri; Tamizifar; Shahri & Mohammadnejad, 2012)
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Type: state university
Paper No.: 414
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