Results 51 to 60 of about 2,634 (197)

A Review of Creep Deformation and Rupture Mechanisms of Cr-Mo Alloy for the Development of Creep Damage Constitutive Equations under Lower Stress

, 2013
This paper presents a review of creep deformation and rupture mechanisms of low Cr-Mo alloy for the development of its creep damage constitutive equations under lower stress.
Xu, Qiang, Barrans, Simon, Xu, Qihua, Lou, Zhongyu, Lu, Zhongyu   +4 more
core  

Integrated approach for stress based lifing of aero gas turbine blades [PDF]

, 2013
In order to analyse the turbine blade life, the damage due to the combined thermal and mechanical loads should be adequately accounted for. This is more challenging when detailed component geometry is limited. Therefore, a compromise between the level of
Abu, Abdullahi Obonyegba
core  

Consistent creep and rupture properties for creep-fatigue evaluation

, 1978
The currently accepted practice of using inconsistent representations of creep and rupture behaviors in the prediction of creep-fatigue life is shown to introduce a factor of safety beyond that specified in current ASME Code design rules for 304 ...
Schultz, C.C., C. C. Schultz
core   +1 more source

Creep Behaviour of Modified Mar-247 Superalloy

Archives of Metallurgy and Materials, 2016
The paper presents the results of analysis of creep behaviour in short term creep tests of cast MAR-247 nickel-based superalloy samples made using various modification techniques and heat treatment.
Cieśla M., Mańka M., Binczyk F., Gradoń P.   +3 more
doaj   +1 more source

Influence of normalizing and tempering temperatures on the creep properties of P92 steel

High Temperature Materials and Processes, 2020
P92 steel is used as a piping material in ultra super critical power plants that can be operated at steam temperatures up to 650°C. The changes in the martensitic microstructure of P92 steel must be evaluated thoroughly before it is put into actual ...
Maddi Lakshmiprasad, Ballal Atul Ramesh, Peshwe Dilip Ramkrishna, Mathew M. D.   +3 more
doaj   +1 more source

Relationship between high temperature microstructural evolution and creep rupture life of Cr35Ni45Nb alloy under different oxidation conditions

工程科学学报, 2016
The relationship of creep rupture life and microstructural evolution under different high temperature oxidation conditions for Cr35Ni45 Nb alloy was studied by using SEM and quantitative electronic probe analysis.
XIAO Jiang-chu, ZHANG Mai-cang, WU Yun-sheng   +2 more
doaj   +1 more source

Safe structural design for fatigue and creep using cyclic yield strength

, 2014
This study proposes cyclic yield strength (CYS, σ_cy) as a potential characteristic of safe design for structures operating under fatigue and creep conditions.
Gorash, Yevgen, Mackenzie, Donald
core  

Impression creep testing for evaluation of grade 22 ex-service hot reheat piping seam weld

Ubiquity Proceedings, 2018
U.S. electric power production is significantly dependent on the operation of coal-fired steam generation units and a large majority of these units are reaching ages over 50+ years with concerns for operating component integrity and remaining life.
A. Bridges, J. Shingledecker, J. Siefert, D. Purdy, J. Foulds, C. Ferguson   +5 more
doaj   +1 more source

Predicting creep rupture from early strain data

, 2009
To extend creep life modelling from classical rupture modelling, a robust and effective parametric strain model has been developed. The model can reproduce with good accuracy all parts of the creep curve, economically utilising the available rupture ...
Auerkari, Pertti, Holmström, Stefan
core   +1 more source

Creep rupture of smoothed and notched DD6 single crystal superalloy specimens subjected to high-temperature hot corrosion

Materials & Design
This work studies the creep rupture behaviors of both smoothed and V-notched DD6 Ni-based single crystal superalloy specimens under both air and corrosion conditions, within a stress range of 300 to 700 MPa at 950 °C.
Baishun Yang, Biao Li, Yaning Zhang
doaj   +1 more source