The effect of combined additions of Ti and Nb on structure and strength of cast HH steel after aging at 1173K for 1000h
Publish place: 1st International and 6th Joint Conference of Iranian Society of Metallurgical Engineers and the scientific community of Casting
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IMES06_185
تاریخ نمایه سازی: 8 بهمن 1391
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.
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Authors
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
M Mohammadnejad
Department of Material Engineering, Isfahan University of Technology, Isfahan, Iran
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