Zobrazeno 1 - 10
of 175
pro vyhledávání: '"550"'
Publikováno v:
Materials Science and Engineering: A. 702:196-205
The objective of this paper is to study the influence of thermal cycles produced by the later welding passes on the properties of the sub-regions in reheated zone of multi-pass weld metal for a 550 MPa grade offshore engineering steel. A Gleeble-3500
Publikováno v:
Materials Science and Engineering: A. 798:140230
Uniaxial creep-to-rupture tests at 550 and 600 °C under a constant load of 300 MPa have been performed to study the effect of lead-bismuth eutectic (LBE) on the creep failure behavior of a solution-annealed 15-15Ti steel. The results show that the s
Publikováno v:
Materials Science and Engineering: A. 252:248-255
Creep behavior and deformation substructures of Mg–Y binary alloys containing 0.2–2.4 mol% Y have been investigated at 550 K under 50–200 MPa. Creep strength is remarkably improved by a small addition of yttrium as compared with aluminum and ma
Publikováno v:
Materials Science and Engineering: A. 748:386-395
Steels alloyed with high Ti addition levels present an interesting combination of high strength and formability, principally due to the high levels of precipitation hardening that can be attained. However, their mechanical properties can be highly se
Effect of Nb on the microstructure and properties of Ti-Mo microalloyed high-strength ferritic steel
Publikováno v:
Materials Science and Engineering: A. 736:148-155
The effects of Nb on the microstructure and mechanical properties of Ti-Mo microalloyed high strength ferritic steel were systematically investigated. It was found that Nb addition inhibited the bainite transformation and was beneficial for obtaining
Publikováno v:
Materials Science and Engineering: A. 707:207-220
Low cycle fatigue (LCF) behavior of a tempered martensitic Fe-9%Cr-based oxide dispersion strengthened (ODS) steel at elevated temperatures is correlated to the microstructural evolution after cyclic straining. The fully reversed strain-controlled te
Publikováno v:
Materials Science and Engineering: A. 696:104-112
Heat-to-heat variation of creep strength is significant in grade 91 (Gr.91) steel, but the causes of the variation have not been well understood yet. In the present paper, creep rupture data of 14 heats of Gr.91 steel were analyzed paying attention t
Publikováno v:
Materials Science and Engineering: A. 682:664-672
The paper presents the results of research on the microstructure and mechanical properties of 7CrMoVTiB10 – 10 (T24) steel. The examined steel was subject to ageing at the temperature of 550 and 600 °C for 70,000 h. Performed tests of mechanical p
Publikováno v:
Materials Science and Engineering: A. 682:156-163
Ni-Cr-W based superalloys with different grain size have been prepared by specifically designed melt treatment technologies. The effect of grain refinement on the macrostructures, microstructures, morphology of precipitates, mechanical properties and
Publikováno v:
Materials Science and Engineering: A. 802:140678
The present work aims to unravel the effect of Ti microalloying on the refinement of co-precipitated nanoscale Cu and M2C carbides, and thereby the improvement of both strength and toughness of an ultrahigh-strength Fe-0.05C-1.3Cu steel. The co-preci