NDLI: Precipitation of Nano-Sized Z-Phase in HR3C Austenitic Heat Resistant Steel

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Yin, Fengshi Xu, Zhen Xue, Bing Zhou, Li Jiang, Xuebo
Copyright Year	2013
Abstract	Effect of heat treatment on the precipitation behavior of secondary phases in a HR3C austenitic heat resistant steel was investigated. The microstructure of the steel in solution-treated state consists of austenitic matrix and coarse Z-phase particles. After aging treatment at 650–950°C for 1h, M23C6-type carbide precipitates along random grain boundaries. Dense and homogeneous nanosized Z-phase precipitates within austenite grains are obtained by an aging treatment at a temperature between 800 and 900°C for 1h. The high density of dislocation walls produced during the water-cooling process after solution treatment facilitate the precipitation of the nanosized Z-phase. With increasing the aging temperature, the hardness initially drops, then increases and reaches a peak when the aging temperature is at 850°C due to the precipitation of the nanosized Z-phase.
File Format	PDF
ISBN	9780791856185
DOI	10.1115/IMECE2013-62075
Volume Number	Volume 2A: Advanced Manufacturing
Conference Proceedings	ASME 2013 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2013-11-15
Publisher Place	San Diego, California, USA
Access Restriction	Subscribed
Subject Keyword	Dislocation density Grain boundaries Water Precipitation Temperature Cooling Particulate matter Specialty steels Steel Heat treating (metalworking)
Content Type	Text
Resource Type	Article

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