Microstructural changes due to longterm service exposure in naphta cracking tubes made of a Fe-Ni-Cr superalloy

SEM fractography of fracture surfaces with elongated inclusions Kaynak, Cevdet (1994-07-22)
A SEM study of creep and thermal fatigue failure in naphtha cracking furnace tubes made of 800H alloy Tekin, E (1998-09-04)
Mechanical Fracturing of Core-Shell Undercooled Metal Particles for Heat-Free Soldering Çınar, Simge; Chen, Jiahao; Thuo, Martin (Springer Science and Business Media LLC, 2016-02-23) Phase-change materials, such as meta-stable undercooled (supercooled) liquids, have been widely recognized as a suitable route for complex fabrication and engineering. Despite comprehensive studies on the undercooling phenomenon, little progress has been made in the use of undercooled metals, primarily due to low yields and poor stability. This paper reports the use of an extension of droplet emulsion technique (SLICE) to produce undercooled core-shell particles of structure; metal/oxide shell-acetate ('/'=...
Time-wise variation of scouring at bridge abutments Yanmaz, Ali Melih (Springer Science and Business Media LLC, 2007-06-01) Accurate estimation of the maximum possible depth of scour at bridge C, abutments is important in decision-making for the safe depth of burial of footings. Besides, investigation of the geometric features of scour holes around abutments provides useful information for the degree of scour counter-measure to be implemented against excessive scouring. Experiments have been performed to investigate time-dependent characteristics of scour holes around vertical wall abutments under clear water conditions with uni...
Direct Visualization of the Hydration Layer on Alumina Nanoparticles with the Fluid Cell STEM in situ FIRLAR, Emre; Çınar, Simge; KASHYAP, Sanjay; AKINC, MÜFİT; PROZOROV, Tanya (Springer Science and Business Media LLC, 2015-05-21) Rheological behavior of aqueous suspensions containing nanometer-sized powders is of relevance to many branches of industry. Unusually high viscosities observed for suspensions of nanoparticles compared to those of micron size powders cannot be explained by current viscosity models. Formation of so-called hydration layer on alumina nanoparticles in water was hypothesized, but never observed experimentally. We report here on the direct visualization of aqueous suspensions of alumina with the fluid cell in si...

Citation Formats

F. ORHANER and E. TEKIN, “Microstructural changes due to longterm service exposure in naphta cracking tubes made of a Fe-Ni-Cr superalloy,” 1994, p. 535, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66081.