<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">In this paper characteristic features of metal dusting corrosion in high temperature gas mixtures of high carbon activity in catalytic reforming units, including Continuous Catalyst Regeneration (CCR) platformer are presented. Examples of 2.25Cr-1Mo and 9Cr-1Mo steel tubes at advanced stages of metal dusting process after long-term service in charge heaters are used to prove that destructive examinations are necessary to provide certain information about possible mechanisms of damage, and are helpful in assessment of immediate fitness for purpose and long-term service capability of the components during and following shut-downs.</abstract>

Assessment of fitness for service of Cr-Mo steel tubes in catalytic reforming charge heaters

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">A cavitation degradation process and fatigue phenomenon were described. Similarly to fatigue phenomenon, cavitation pulses division into three fractions was suggested. The action of each fraction was respectively compared to low-cycle fatigue, high-cycle fatigue and low-amplitude fatigue. The action of each fraction was described separately. Detailed analysis of the influence of each fraction on the degradation process shows that besides mechanical loading also thermal loading occurs. The cavitation erosion is assumed to be the sum of degradation of each fraction. Thus, the model of PVD coatings degradation under action of cavitation pulses include variable-amplitude and variable-temperature fatigue.</abstract>

Cavitation degradation model of hard thin pvd coatings

<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">When bonded joint is subjected to mode I fracture loading, the adhesive joints analytical solutions treats the adhesive layer, usually, as not existing or 1D Hook elastic layer. In the case of 1D elastic layer, represented as Hooks spring element, is acting, only, in direction contrary to the applied load. Basing on the information yielded from sensitive laser profilometry technique, where deflections of bonded part of the joint were measured, within this contribution, 2D Finite Element Method model is introduced. The FEM allows adhesive layer to be simulated as two perpendicular-acting Hook's springs, thus in-plane shear compliance is enabled. Subsequently, appropriate analysis were carried out. Results, in terms of plate deflection, were compared with laser profilometry technique and common analytical solutions. It is concluded that linear 1D model is not sufficient for the asymmetric bonded joint configuration since the adhesive resists actively also in the in-plane shearing direction. Omitting shearing compliance effect can lead to valuable misinterpretation of the fracture energy, up to 20% in cases studied, and thus, cannot be ignored. Finally, power law based, correction factors are given promising fast and reliable data correction.</abstract>

Laboratoire de Mécanique Physique LMP-UMR CNRS, Université Bordeaux 1, 5469, 351 Cours de la Libération, 33405 TALENCE Cedex, France

Faculty of Mechanical Engineering, Dept. of Material Science and Engineering, Technical University of Gdansk, Narutowicza 11/12, 80-233 Gdansk, Poland

Fracture energy of bonded joints with 2D elastic adhesive layer

AHEAD OF PRINT

Volume 24 (2024): Issue 1 (March 2024)

Volume 23 (2023): Issue 4 (December 2023)

Volume 23 (2023): Issue 3 (September 2023)

Volume 23 (2023): Issue 2 (June 2023)

Volume 23 (2023): Issue 1 (March 2023)

Volume 22 (2022): Issue 4 (December 2022)

Volume 22 (2022): Issue 3 (September 2022)

Volume 22 (2022): Issue 2 (June 2022)

Volume 22 (2022): Issue 1 (March 2022)

Volume 21 (2021): Issue 4 (December 2021)

Volume 21 (2021): Issue 3 (September 2021)

Volume 21 (2021): Issue 2 (June 2021)

Volume 21 (2021): Issue 1 (March 2021)

Volume 20 (2020): Issue 4 (December 2020)

Volume 20 (2020): Issue 3 (September 2020)

Volume 20 (2020): Issue 2 (June 2020)

Volume 20 (2020): Issue 1 (March 2020)

Volume 19 (2019): Issue 4 (December 2019)

Volume 19 (2019): Issue 3 (September 2019)

Volume 19 (2019): Issue 2 (June 2019)

Volume 19 (2019): Issue 1 (March 2019)

Volume 18 (2018): Issue 4 (December 2018)

Volume 18 (2018): Issue 3 (September 2018)

Volume 18 (2018): Issue 2 (June 2018)

Volume 18 (2018): Issue 1 (March 2018)

Volume 17 (2017): Issue 4 (December 2017)

Volume 17 (2017): Issue 3 (September 2017)

Volume 17 (2017): Issue 2 (June 2017)

Volume 17 (2017): Issue 1 (March 2017)

Volume 16 (2016): Issue 4 (December 2016)

Volume 16 (2016): Issue 3 (September 2016)

Volume 16 (2016): Issue 2 (June 2016)

Volume 16 (2016): Issue 1 (March 2016)

Volume 15 (2015): Issue 4 (December 2015)

Volume 15 (2015): Issue 3 (September 2015)

Volume 15 (2015): Issue 2 (June 2015)

Volume 15 (2015): Issue 1 (March 2015)

Volume 14 (2014): Issue 4 (December 2014)

Volume 14 (2014): Issue 3 (September 2014)

Volume 14 (2014): Issue 2 (June 2014)

Volume 14 (2014): Issue 1 (March 2014)

Volume 13 (2013): Issue 4 (December 2013)

Volume 13 (2013): Issue 3 (September 2013)

Volume 13 (2013): Issue 2 (June 2013)

Volume 13 (2013): Issue 1 (March 2013)

Volume 12 (2013): Issue 4 (January 2013)

Volume 12 (2012): Issue 3 (October 2012)

Volume 12 (2012): Issue 2 (June 2012)

Volume 12 (2012): Issue 1 (March 2012)

Volume 11 (2011): Issue 4 (December 2011)

Volume 11 (2011): Issue 3 (September 2011)

Volume 11 (2011): Issue 2 (June 2011)

Volume 11 (2011): Issue 1 (March 2011)

Volume 10 (2010): Issue 4 (December 2010)

Volume 10 (2010): Issue 3 (September 2010)

Volume 10 (2010): Issue 2 (June 2010)

Volume 10 (2010): Issue 1 (March 2010)

Volume 9 (2009): Issue 4 (December 2009)

Volume 9 (2009): Issue 3 (September 2009)

Volume 9 (2009): Issue 2 (June 2009)

Volume 9 (2009): Issue 1 (March 2009)

Volume 8 (2008): Issue 4 (December 2008)

Volume 8 (2008): Issue 3 (September 2008)

Volume 8 (2008): Issue 2 (June 2008)

Volume 8 (2008): Issue 1 (March 2008)

Advances in Materials Science

The journal is primarily focused on structure-properties relationship of engineering materials. Research articles addressing the following issues can be published as unique contributions across a variety of topics, including, but not limited to:   Structural and functional materials (metals and alloys, ceramics, polymers, composites)  Nanomaterials  Biomaterials  Materials for electronics  Materials for marine industry  Materials for energy industry  Materials for buildings  Surfaces, interfaces and thin films  Design, synthesis, processing and characterization techniques  Manufacturing of materials  Mechanics of materials  Stress analysis  Modeling of properties of materials  Methodology of testing the structure and properties of materials   The journal publishes original research articles and review articles. The possibility of publishing review articles should be agreed with the editors of the journal prior to submission.   Why subscribe and read   Internationally recognized source of up-to-date materials science information showing the newest achievements in area of structural and functional materials.  Why submit   A quick, reliable and constructive review  Short publication time  High quality electronic publication technologies  Open access   Rejection Rate   53%  Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Advances in Materials Science

Volume 10 (2010): Issue 3 (September 2010)

Assessment of fitness for service of Cr-Mo steel tubes in catalytic reforming charge heaters

Cavitation degradation model of hard thin pvd coatings

Fracture energy of bonded joints with 2D elastic adhesive layer

Suche

Alle Bände und Hefte dieser Zeitschrift