scholarly journals An Experimental Study of the Effect of Thermal Treatments & Charpy Impact Test Parameters on Impact Toughness of EN31 Steel

2014 ◽  
Vol 11 (3) ◽  
pp. 17-22 ◽  
Author(s):  
Khangamlung Kamei ◽  
◽  
Anna Garima William ◽  
L.S Koveile ◽  
Noman Ahmad ◽  
...  
Keyword(s):  
Experimental Study ◽  
Impact Toughness ◽  
Impact Test ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Thermal Treatments ◽  
Test Parameters

Effect of Shock Temperature on the Impact Toughness of Butt-Joint

2012 ◽  
Vol 602-604 ◽  
pp. 2096-2099
Author(s):  
Min You ◽  
Ling Wu ◽  
Hai Zhou Yu ◽  
Jing Rong Hu ◽  
Mei Li
Keyword(s):  
Impact Toughness ◽  
Impact Test ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Butt Joint ◽  
Adhesively Bonded ◽  
A Value ◽  
Shock Temperature ◽  
Izod Impact ◽  
The Impact

The effect of the shock temperature and time on the impact toughness of the adhesively bonded steel butt joint under Charpy or Izod impact test is studied using the experimental method. The results obtained show that the impact toughness decreases when the shock temperature increased. When the curing time, temperature as well as the open assembly time was set as constant, the higher the shock temperature is, the lower the impact toughness of the joint. Comparing to the Charpy impact test, the Izod impact test is more sensitive to the shock temperature. When the shock temperature is set at a value not less than 300 C, the impact toughness measured is nearly the same as zero due to decomposition, carbonization and volatilization of the adhesive.

scholarly journals Change of mechanical properties in substrate during rewelding deposit

2011 ◽  
Vol 57 (No. 3) ◽  
pp. 105-109 ◽  
Author(s):  
R. Chotěborský ◽  
P. Hrabě ◽  
A. Kabutey
Keyword(s):  
Mechanical Properties ◽  
Impact Toughness ◽  
Heat Affected Zone ◽  
Impact Test ◽  
Low Carbon Steel ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Optical Metallography ◽  
Coarse Grain ◽  
Low Carbon

A study was carried out to examine the influence of rewelding deposit of structural low carbon steel and also the changes which occur in heat-affected zone and subcritical zone during rewelding. Optical metallography, microhardness Vickers method and Charpy impact test were employed to analyze these differences. The results show that rewelding deposit increased the heat-affected zone and fine coarse grain heat-affected zone and also has influence on impact toughness of substrate and their microhardness. Again, it was found that rewelding increased the fine coarse grain heat-affected zone. This effect resulted in increasing impact toughness in the heat-affected zone. However, submicroscopic change in substrate ferrite showed decreasing impact toughness.

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