scholarly journals Effects of Oxides on Tensile and Charpy Impact Properties and Fracture Toughness in Heat Affected Zones of Oxide-Containing API X80 Linepipe Steels

2014 ◽  
Vol 45 (7) ◽  
pp. 3036-3050 ◽  
Author(s):  
Hyo Kyung Sung ◽  
Seok Su Sohn ◽  
Sang Yong Shin ◽  
Kyung Shik Oh ◽  
Sunghak Lee
Keyword(s):  
Fracture Toughness ◽  
Charpy Impact ◽  
Impact Properties ◽  
Linepipe Steels

Fracture Toughness Properties of SA540 Steels for Nuclear Bolting Applications

1977 ◽  
Vol 99 (3) ◽  
pp. 419-426
Author(s):  
R. R. Seeley ◽  
W. A. Van Der Sluys ◽  
A. L. Lowe
Keyword(s):  
Fracture Toughness ◽  
Impact Energy ◽  
Nuclear Reactor ◽  
Charpy Impact ◽  
Nuclear Regulatory Commission ◽  
Charpy Impact Energy ◽  
Energy Correlation ◽  
Impact Properties ◽  
Minimum Requirements ◽  
Regulatory Commission

Large bolts manufactured from SA540 Grades B23 and B24 are used on nuclear reactor vessels and require certain minimum mechanical properties. A minimum fracture toughness of 125 ksi in. (137 MPa m) at maximum operating stresses is required by the Nuclear Regulatory Commission for these bolts. This minimum toughness property was determined by a stress analysis of a bolt. Minimum required Charpy impact properties were calculated by a fracture toughness-Charpy impact energy correlation and the minimum calculated fracture toughness. The fracture toughness, yield strength and Charpy V notch impact properties were determined for five commercial heats of SA540 steels. Correlations between the fracture toughness and Charpy impact properties of these materials were evaluated. The toughness-impact energy correlation used to set the minimum required Charpy impact properties was found to be unduly conservative, and a different correlation of these properties is suggested. The SA540 steels investigated exhibited fracture toughness properties in excess of the NRC minimum requirements.

Fracture toughness and Charpy impact properties of several RAFMS before and after irradiation in HFIR

2007 ◽  
Vol 367-370 ◽  
pp. 68-73 ◽  
Author(s):  
M.A. Sokolov ◽  
H. Tanigawa ◽  
G.R. Odette ◽  
K. Shiba ◽  
R.L. Klueh
Keyword(s):  
Fracture Toughness ◽  
Charpy Impact ◽  
Impact Properties ◽  
Before And After

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

scholarly journals Charpy Impact Properties of Hydrogen-Exposed 316L Stainless Steel at Ambient and Cryogenic Temperatures

Metals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 625 ◽  
Author(s):  
Le Thanh Hung Nguyen ◽  
Jae-Sik Hwang ◽  
Myung-Sung Kim ◽  
Jeong-Hyeon Kim ◽  
Seul-Kee Kim ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Low Temperatures ◽  
316L Stainless Steel ◽  
Charpy Impact ◽  
Cryogenic Temperatures ◽  
Absorbed Energy ◽  
Impact Properties ◽  
Charging Time ◽  
The Impact

316L stainless steel is a promising material candidate for a hydrogen containment system. However, when in contact with hydrogen, the material could be degraded by hydrogen embrittlement (HE). Moreover, the mechanism and the effect of HE on 316L stainless steel have not been clearly studied. This study investigated the effect of hydrogen exposure on the impact toughness of 316L stainless steel to understand the relation between hydrogen charging time and fracture toughness at ambient and cryogenic temperatures. In this study, 316L stainless steel specimens were exposed to hydrogen in different durations. Charpy V-notch (CVN) impact tests were conducted at ambient and low temperatures to study the effect of HE on the impact properties and fracture toughness of 316L stainless steel under the tested temperatures. Hydrogen analysis and scanning electron microscopy (SEM) were conducted to find the effect of charging time on the hydrogen concentration and surface morphology, respectively. The result indicated that exposure to hydrogen decreased the absorbed energy and ductility of 316L stainless steel at all tested temperatures but not much difference was found among the pre-charging times. Another academic insight is that low temperatures diminished the absorbed energy by lowering the ductility of 316L stainless steel.

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
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