In situ observation of deformation behavior of chain aggregate inclusions: a case study for Al2O3 at a liquid steel/argon interface

2018 ◽  
Vol 53 (18) ◽  
pp. 13203-13215 ◽  
Author(s):  
Wangzhong Mu ◽  
Neslihan Dogan ◽  
Kenneth S. Coley
Keyword(s):  
Liquid Steel ◽  
Deformation Behavior ◽  
In Situ Observation

Gas pockets in a wastewater rising main: a case study

2012 ◽  
Vol 66 (10) ◽  
pp. 2265-2274 ◽  
Author(s):  
Oscar Pozos-Estrada ◽  
Oscar A. Fuentes-Mariles ◽  
Adrian Pozos-Estrada
Keyword(s):  
Prestressed Concrete ◽  
Contributory Factor ◽  
In Situ Observation ◽  
Flow Conditions ◽  
Transient Event ◽  
Power Failure ◽  
Fluid Transients ◽  
Prestressed Concrete Cylinder Pipe

This paper presents a case study of an existing wastewater rising main (WWRM) in which an extreme transient event produced by simultaneous power failure of the pumps caused the rupture of a 1.2 m (48 in) prestressed concrete cylinder pipe (PCCP), causing an important leakage of sewage. The event and the methodology followed in order to validate the diagnostics of the failure are described. The detail study included in situ observation of the system, experimental investigation in a setup, hydraulic analysis, as well as details of the structural strength of the WWRM. After the extensive investigation and several simulations of fluid transients for different scenarios and flow conditions, it was found that stationary small gas pockets accumulated at high points of the WWRM were identified as the principal contributory factor of the failure. This case study serves as clear warning of the consequences of operating a WWRM with gas pockets at its high points.

scholarly journals Analysis of deformation behavior in beta titanium alloys using TEM in-situ observation

2019 ◽  
Vol 69 (5) ◽  
pp. 273-280 ◽  
Author(s):  
Kohei Onose ◽  
Shigeru Kuramoto ◽  
Takuya Suzuki ◽  
Chang Ya-Ling ◽  
Eri Nakagawa ◽  
...  
Keyword(s):  
Titanium Alloys ◽  
Deformation Behavior ◽  
In Situ Observation ◽  
Beta Titanium ◽  
Beta Titanium Alloys

scholarly journals Magnetic helicity of a flux rope in the magnetotail: THEMIS results

2010 ◽  
Vol 28 (9) ◽  
pp. 1687-1693 ◽  
Author(s):  
Y. C. Zhang ◽  
C. Shen ◽  
Z. X. Liu ◽  
Y. Narita
Keyword(s):  
Magnetic Field ◽  
Topological Structure ◽  
Flux Rope ◽  
Magnetic Helicity ◽  
In Situ Observation ◽  
Reconstruction Technique ◽  
First Time ◽  
The Magnetic Field

Abstract. The magnetic field in many regions of magnetosphere has a complex topological structure. As a parameter to measure the topological complexity, the concept of magnetic helicity is a useful tool in magnetospheric physics. Here we present a case study of magnetic helicity in the flux rope (FR) in the near-Earth plasma sheet (PS) based on the in-situ observation from THEMIS for the first time. With the help of the Grad-Shafranov reconstruction technique, we determine the spatial distribution of magnetic field and evaluate the magnetic helicity in the flux rope. The conservation of magnetic helicity during multiple X-line reconnections and the transport of magnetic helicity between different magnetic field configurations are also discussed. The further application of helicity in magnetosphere will provide us more knowledge about the topologic property of the magnetic fields there and more attention should be paid to that.

scholarly journals TEM in-situ Observation of Indentation-induced Deformation Behavior

Materia Japan ◽  
2009 ◽  
Vol 48 (12) ◽  
pp. 614-614
Author(s):  
Takahito Ohmura ◽  
Zhang Ling ◽  
Kaoru Sekido ◽  
Kaneaki Tsuzaki ◽  
Toru Hara
Keyword(s):  
Deformation Behavior ◽  
In Situ Observation

In-Situ Observation of Deformation Behavior on Mg Single- and Poly-Crystals by Modified Optical Indentation Microscopy

2017 ◽  
Vol 2017 (0) ◽  
pp. OS0704
Author(s):  
Takahiro MINETA ◽  
Seiji MIURA ◽  
Kazuhiko OKA ◽  
Tatsuya MIYAJIMA ◽  
Hiroyuki SATO
Keyword(s):  
Deformation Behavior ◽  
In Situ Observation

scholarly journals In situ observation of deformation behavior of Ti6Al4V subjected to electrically-assisted forming process

2020 ◽  
Vol 50 ◽  
pp. 647-651
Author(s):  
Xia’nan Li ◽  
Zhutian Xu ◽  
Jihui Huang ◽  
Linfa Peng ◽  
Xinmin Lai
Keyword(s):  
Deformation Behavior ◽  
In Situ Observation ◽  
Forming Process ◽  
Electrically Assisted
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