Comparative study of tensile and charpy impact properties of X70 and X80 linepipe steels after ultra fast cooling processing

2017 ◽  
Vol 32 (3) ◽  
pp. 654-660 ◽  
Author(s):  
Zhuang Li ◽  
Yong Tian ◽  
Zhenyao Shao ◽  
Zhanshan Wei
Keyword(s):  
Comparative Study ◽  
Charpy Impact ◽  
Impact Properties ◽  
Ultra Fast Cooling ◽  
Fast Cooling ◽  
Linepipe Steels

Charpy Impact Properties of Heat Affected Zones of API X80 Linepipe Steels Containing Complex Oxides

2010 ◽  
Vol 48 (10) ◽  
pp. 875-883 ◽  
Author(s):  
Hyo Kyung Sung ◽  
Sang Yong Shin ◽  
Wooyeol Cha ◽  
Kyungshik Oh ◽  
Sunghak Lee ◽  
...  
Keyword(s):  
Charpy Impact ◽  
Complex Oxides ◽  
Impact Properties ◽  
Linepipe Steels

scholarly journals Effects of Molybdenum and Vanadium Addition on Tensile and Charpy Impact Properties of API X70 Linepipe Steels

2007 ◽  
Vol 38 (8) ◽  
pp. 1731-1742 ◽  
Author(s):  
Young Min Kim ◽  
Sang Yong Shin ◽  
Hakcheol Lee ◽  
Byoungchul Hwang ◽  
Sunghak Lee ◽  
...  
Keyword(s):  
Charpy Impact ◽  
Impact Properties ◽  
Linepipe Steels

Effects of acicular ferrite on charpy impact properties in heat affected zones of oxide-containing API X80 linepipe steels

2011 ◽  
Vol 528 (9) ◽  
pp. 3350-3357 ◽  
Author(s):  
Hyo Kyung Sung ◽  
Sang Yong Shin ◽  
Wooyeol Cha ◽  
Kyungshik Oh ◽  
Sunghak Lee ◽  
...  
Keyword(s):  
Acicular Ferrite ◽  
Charpy Impact ◽  
Impact Properties ◽  
Linepipe Steels

scholarly journals Effects of Complex Oxides on Charpy Impact Properties of Heat Affected Zones of Two API X70 Linepipe Steels

2009 ◽  
Vol 49 (8) ◽  
pp. 1191-1199 ◽  
Author(s):  
Sang Yong Shin ◽  
Kyungshik Oh ◽  
Ki Bong Kang ◽  
Sunghak Lee
Keyword(s):  
Charpy Impact ◽  
Complex Oxides ◽  
Impact Properties ◽  
Linepipe Steels

Control of Yield Ratio Based on Ultra Fast Cooling and Mechanical Behaviors of High Strength Aseismic Steel

2011 ◽  
Vol 228-229 ◽  
pp. 505-508 ◽  
Author(s):  
Jian Kang ◽  
Guo Yuan ◽  
Zhao Dong Wang
Keyword(s):  
Volume Fraction ◽  
Charpy Impact ◽  
High Strength ◽  
Ferrite Matrix ◽  
Constructional Steel ◽  
Yield Ratio ◽  
Second Phase ◽  
Soft Matrix ◽  
Ultra Fast Cooling ◽  
Fast Cooling

The new generation TMCP process based on ultra fast cooling has recently developed rapidly. In order to develop the low yield ratio constructional steel, the effects of cooling finishing temperature on microstructure and yield ratio of steels were studied primarily. The results show that the high strength and low yield ratio can be achieved by multiphase including M-A hard second phase and bainite ferrite soft matrix. When UFC final temperature is 521°C, the uniform M-A phases with volume fraction of 22.5% are distributed on bainite ferrite matrix, and then the yield strength is 570MPa, tensile strength 760MPa, yield ratio 0.75, and percentage elongation 22% with the Charpy impact energy 284J at -40°C. All these indexes come up to the relevant standards. The steel with lower yield ratio can be subjected to larger plastic deformation before the necking instability.

scholarly journals Effects of Cooling Conditions on Tensile and Charpy Impact Properties of API X80 Linepipe Steels

2009 ◽  
Vol 41 (2) ◽  
pp. 329-340 ◽  
Author(s):  
Seung Youb Han ◽  
Sang Yong Shin ◽  
Sunghak Lee ◽  
Nack J. Kim ◽  
Jin-Ho Bae ◽  
...  
Keyword(s):  
Charpy Impact ◽  
Impact Properties ◽  
Cooling Conditions ◽  
Linepipe Steels
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