Results 21 to 30 of about 19,446 (228)

The Interpretation of Experimental Observation Data for the Development of Mechanisms based Creep Damage Constitutive Equations for High Chromium Steel [PDF]

open access: yes, 2015
It is very important to design a safe factor or estimating the remain lifetime for electric power plant components of steam pipes which mostly manufacture by high chromium steels and work at high temperature and low stress level.
Lu, Zhongyu, Xu, Qiang, Yang, Xin
core   +1 more source

Low temperature friction stir welding of P91 steel

open access: yesDefence Technology, 2016
Bead-on-plate friction stir welds were made on P91 alloy with low and high rotational speeds (100 and 1000 RPM) to study their effects on weld microstructural changes and impression creep behavior.
Prasad Rao Kalvala   +4 more
doaj   +1 more source

The influence of binarity on dust obscuration events in the planetary nebula M 2-29 and its analogues [PDF]

open access: yes, 2011
The central star of the planetary nebula (CSPN) M 2-29 shows an extraordinary R Coronae Borealis-like fading event in its optical lightcurve. The only other CSPN to show these events are CPD-568032 (Hen 3-1333) and V651 Mon (NGC 2346).
A. Acker   +142 more
core   +2 more sources

DEFORMATION-MECHANISM-BASED MODELING OF CREEP BEHAVIOR OF P91 STEEL

open access: yesJixie qiangdu, 2022
Creep behavior of P91 steel was studied by using a constitutive model based on deformation mechanism. Combined with the experimental data, it was found that the minimum creep rate has an obvious exponential relationship with the applied stress during ...
LI Bo   +4 more
doaj  

High Temperature Oxidation Process of P91 Steel in CO2 Atmosphere Containing SO2 [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
In order to improve the efficiency of power generation system and reduce CO2 emissions power plants work at high temperature and pressure. Under such conditions modified steel 9Cr, which fulfils the requirements concerning creep resistance, is used ...
H. Kominko, A. Jaroń
doaj   +1 more source

Examining Stress Relaxation in a Dissimilar Metal Weld Subjected to Postweld Heat Treatment [PDF]

open access: yes, 2018
Dissimilar metal welds are often required in nuclear power plants to join components made from austenitic steels to those from ferritic steels, particularly in fast breeder reactor plants, in order to join the intermediate heat exchanger to the steam ...
Abburi Venkata   +30 more
core   +4 more sources

FE modelling of small punch creep test using Kocks-Mecking-Estrin model

open access: yesUbiquity Proceedings, 2018
Small punch creep testing (SPCT) of thin disc specimens can be considered as a useful technique for determination of creep properties of exposed components of power generation.
H.K. Al-Abedy, I.A. Jones, W. Sun
doaj   +1 more source

Isothermal Fatigue Characterization of P91 Steel Under Load Control [PDF]

open access: yesMaterials Research
P91 steels are widely used in power plants. They were developed in a context of increasing process temperatures to increase efficiency and reduce CO2 emissions into the atmosphere.
Yvens S. Sebastiany   +4 more
doaj   +1 more source

A Survey of OH Masers Towards High Mass Protostellar Objects [PDF]

open access: yes, 2007
We present a survey of OH maser emission towards a sample of high mass protostellar objects made using the Nancay and GBT telescopes.OH maser emission was detected towards 63 objects with 36 new detections.
Argon   +74 more
core   +4 more sources

Temperature-Dependent Fatigue Characteristics of P91 Steel [PDF]

open access: yesActa Mechanica et Automatica, 2020
Abstract In this paper, the experimental investigations, constitutive description and numerical modelling of low-cycle fatigue behaviour of P91 steel in non-isothermal conditions are presented. First, experimental tests are performed to recognise different aspects of material behaviour.
Władysław Egner   +3 more
openaire   +1 more source

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