Zobrazeno 1 - 10
of 30
pro vyhledávání: '"P.J. Scharning"'
Publikováno v:
Materials Science and Engineering: A. :3-6
New relationships, incorporating the activation energy for matrix diffusion (300 kJ mol−1) and the ultimate tensile strength values at the creep temperature, allow effective rationalization of the multi-batch stress rupture properties for Grade 92
Autor:
B. Wilshire, P.J. Scharning
Publikováno v:
Materials Science and Technology. 25:242-248
After normalising the applied stress through the ultimate tensile strength at each creep temperature, the creep and creep fracture properties of Waspaloy at 873 to 1023 K are superimposed onto ‘master curves’ using an Arrhenius term containing th
Autor:
P.J. Scharning, B. Wilshire
Publikováno v:
International Journal of Pressure Vessels and Piping. 85:739-743
A new approach to analysis of stress rupture data allows rationalization, extrapolation and interpretation of multi-batch creep life measurements reported for ferritic 1Cr–0.5Mo tube steel. Specifically, after normalizing the applied stress through
Autor:
P.J. Scharning, B. Wilshire
Publikováno v:
Materials at High Temperatures. 25:55-65
New relationships are shown to allow straightforward rationalization and extended extrapolation of multi-batch creep data sets for Grade 91 steel (9Cr –1MoVNb). Specifically, after normalizing the applied stress through the appropriate UTS value, c
Autor:
B. Wilshire, P.J. Scharning
Publikováno v:
Materials Science and Technology. 24:1-9
Although a transition from transgranular to intergranular fracture occurs and the tempered bainite microstructure evolves during creep exposure, new relationships allow rationalisation and extrapolation of the multibatch creep data sets reported for
Autor:
B. Wilshire, P.J. Scharning
Publikováno v:
Scripta Materialia. 56:1023-1026
For three 9–12% chromium steels, creep ductility trends are analysed in relation to the time–temperature combinations predicted to cause failure during long-term service of components in modern electricity generating plant.
Autor:
B. Wilshire, P.J. Scharning
Publikováno v:
Scripta Materialia. 56:701-704
Procedures for rationalization and extrapolation of multi-batch creep and creep fracture data, based on relationships which involve only the activation energy for matrix diffusion (300 kJ mol−1) and the ultimate tensile stress values at the creep t
Autor:
R. W. Evans, P.J. Scharning
Publikováno v:
Materials Science and Technology. 20:431-440
The hot plane strain compression test has been used for the determination of stress - strain curves at hot working temperatures. These curves are used for the establishment of the high temperature mechanical constitutive equations which are an essent
Autor:
P.J. Scharning, R. W. Evans
Publikováno v:
Materials Science and Technology. 17:995-1004
The paper investigates the use of the hot axisymmetric compression test for the determination of the hot working properties of alloys. Qualitative analysis shows that stress determinations from the test are subject to systematic errors. These arise f
Autor:
P.J. Scharning, R. W. Evans
Publikováno v:
Materials Science and Technology. 17:487-493
The paper describes the early uniaxial creep behaviour of an airframe aluminium alloy (2419-T851). Tests were conducted over the temperature range 373 to 463 K and for rupture lives up to 7000 ks. The shapes of creep curves were fitted using either t