Characterization of the corrosion behaviour of Zn and Zn alloy electrodeposits: Atmospheric and accelerated tests

1998 ◽  
Vol 40 (2-3) ◽  
pp. 401-410 ◽  
Author(s):  
R. Ramanauskas ◽  
L. Muleshkova ◽  
L. Maldonado ◽  
P. Dobrovolskis
2008 ◽  
Vol 59 (9) ◽  
Author(s):  
Dumitra Lucan ◽  
Manuela Fulger ◽  
Gheorghita Jinescu

The Steam Generators (SG), equipment that ensures the connection between the primary and secondary circuits, creates several safety problems during operation, mainly due to corrosion and mechanical damages. To provide information about the corrosion behaviour of the structural materials from CANDU SG under normal and abnormal conditions of operation and to identify the failure types produced by the corrosion were performed corrosion experiments consisting in chemical accelerated tests, static autoclaving and electrochemical methods. The gravimetric method, optical metallographic microscopy, XRD and EDS analysis, as well as electrochemical measurements have been used to evaluate the corrosion behavior of the steam generator tubes material (Incoloy-800).


2010 ◽  
Vol 50 (12) ◽  
pp. 1994-2000 ◽  
Author(s):  
J.S. Karppinen ◽  
J. Li ◽  
T.T. Mattila ◽  
Mervi Paulasto-Kröckel

Author(s):  
S A Akinlabi ◽  
M P Mashinini ◽  
S O Fatoba ◽  
E T Akinlabi

2020 ◽  
Vol 1000 ◽  
pp. 115-122
Author(s):  
Nono Darsono ◽  
Murni Handayani ◽  
Franciska Pramuji Lestari ◽  
Aprilia Erryani ◽  
I Nyoman Gede Putrayasa ◽  
...  

Magnesium Alloys have the potential to be applied in the various fields of applications including biomaterials. Magnesium Alloys are an interesting alloy due to its high strength to density ratio. They have been proposed as a biodegradable implant material due to its friendly effect to human body compared to another alloy. Besides its good biodegradable properties, it has a disadvantage of low hardness and corrosion properties. In order to overcome this, it has been combined with other metals such as Zinc (Zn) or Copper (Cu). To increase mechanical properties, we used Carbon Nanotubes (CNT) as reinforcement. Magnesium-Zinc (Mg-xZn) CNTs composites with several compositions was prepared by using powder metallurgy and sintered in the presence of flowing Argon (Ar) gas in tube furnace. Mg-Zn Alloy with the composition of 4% and 6% of Zn and the variation of CNTs at 0.1%, 0.3 %, and 0.5% was also prepared. Hardness testing by using microvickers showed that CNTs can increase the alloy hardness which the maximum hardness is 53.6 HV. The corrosion rates as low as 175.5 mpy exhibited for the Mg-Alloy with the composition of Mg-4-Zn with 0.1 wt.% of CNTs


2019 ◽  
Vol 796 ◽  
pp. 91-96
Author(s):  
Esther Titilayo Akinlabi ◽  
Ipfi Mathoho ◽  
Mukuna Patrick Mubiayi

Milling process is the removal of unwanted materials so as to produce the required shape. The purpose of this study was to investigate the effect of milling process parameters and the cooling technique on corrosion behaviour and microhardness of TI-6AL-4V. Milling of Ti-6Al-4V was carried out using tungsten carbide cutting tool while varying spindle speed (120,150, and 180 rev/min), depth of cut (1, 1.5 and 2 mm) and the feed rate remained unchanged at 4.6 mm/min. Subsequent to milling, characterization of subsurface microhardness and corrosion behaviour was conducted. It was found that varying spindle speed and depth of cut had an impact on microhardness. Furthermore, it was noticed that the type of milling condition (flood and dry milling) affected the subsurface microhardness and the corrosion behavior. The corrosion resistance of the milled surface was generated at 180 rev/min and 150 rev/min for the dry and flood milling respectively. Furthermore, the most corrosion resistance was obtained at 2 mm and 1.5 mm depth of cut during dry and flood milling respectively.


2016 ◽  
Vol 112 ◽  
pp. 13-24 ◽  
Author(s):  
Naiguang Wang ◽  
Richu Wang ◽  
Yan Feng ◽  
Wenhui Xiong ◽  
Junchang Zhang ◽  
...  

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