[email protected]

A Study on Tensile Properties of Alloy 709, at various

Alloy 709 is a 20Cr-25Ni advanced austenitic stainless steel developed as an improvement over the existing advanced austenitic stainless steels. The high Ni content provides increased austenite stability [8]. Sourmail et al. [9] have studied the effects of high temperature on the microstructure and secondary phases in the NF709 alloy. Creep behavior and microstructure evolution at 750 °C in a Dec 15, 2012 · Creep behavior of a new precipitation-strengthened 15Cr15Ni austenitic stainless steel with optimized content of Nb, C, N and Mo, subjected to a special multicycled aging-quenching heat treatment process, was investigated at a temperature of 750 °C and stress range of 78200 MPa for up to 10,000 h. The steel exhibited excellent creep rupture strength which exceeds even that of the commercial NF709

Deformation behavior and irradiation tolerance of 316 L

Jun 01, 2021 · Deformation behavior and irradiation tolerance of 316 L stainless steel fabricated by direct energy deposition. and the formation of the secondary phases was related to the heat input and wire feed rate Microstructural evolution of NF709 austenitic stainless steel under in-situ ion irradiations at room temperature, 300, 400, 500 and 600 Energy Materials 2014 - Conference Proceedings The Hot Deformation Behavior of NF709 Austenitic Heat-Resistant Steel. Pages 357-363. Jingzhong, Wang (et al.) Preview Buy Chapter 25,95 Hot deformation constitutive equation and processing map of Alloy 690. Pages 473-480. Feng, Han (et al.) Preview Buy Chapter 25,95 Energy Materials 2014 Wiley Online BooksOct 17, 2014 · About this book. This DVD contains a collection of papers presented at Energy Materials 2014, a conference organized jointly by The Chinese Society for Metals (CSM) and The Minerals, Metals & Materials Society (TMS), and held November 4-6, 2014, in Xian, Shaanxi Province, China. With the rapid growth of the worlds energy production and

Evolution of Precipitate Phases During Long-Term

May 30, 2012 · Evolution of precipitate phases in a precipitation-strengthened high nitrogen 15Cr-15Ni-4Mn-3Cu-1.5Mo-0.46Si-Nb-C-N-Al-B austenitic heat-resistant stainless steel during 10,000 hours of isothermal aging at 1083 K (810 °C) was investigated. The major precipitate phases found in microstructure after 330 hours of aging are coarser residual primary Nb(C,N) precipitates, Z-phase Improved Creep Behavior of a High Nitrogen Nb-Stabilized Jun 08, 2011 · The common types of precipitates employed in the creep-resistant austenitic stainless steels are the particles of MX phase, where M is a carbide- or nitride-forming element such as Ti, Nb, V, or Hf, and X is C or N. The most advanced commercial austenitic grades to date such as NF709 or Sanicro25 are predominantly strengthened by Nb(C,N) and Static recrystallization behavior of a martensitic heat Abstract:A static recrystallization behavior between the rolling passes of a martensitic heat-resistant stainless steel 403Nb has been studied by OM, TEM and double-hit thermo-mechanical simulator to explore the effects of deformation temperature, strain rate, strain and the prior austenite grain size. The results show that increases of deformation temperature and strain rate and strain can promote the

The mechanical and microstructural stability of austenitic

Jan 01, 1992 · The U.S. Department of Energy's Office of Scientific and Technical InformationPrecipitation and hot deformation behavior of austenitic Precipitation and hot deformation behavior of austenitic heat-resistant steels:A review Zhou Yinghui a b , Liu Yongchang a c * ( ), Zhou Xiaosheng a * ( ), Liu Chenxi a , Yu Jianxin a c , Huang Yuan a , Li Huijun a , Li Wenya b