The Effect of Drill Fluid pH on Drill Pipe Corrosion Fatigue Performance

1975 ◽  
Author(s):  
Jamal J. Azar ◽  
James L. Lummus
Keyword(s):  
Corrosion Fatigue ◽  
Drill Pipe ◽  
Fatigue Performance ◽  
Drill Fluid

Corrosion Fatigue Performance of a Carbon Steel in Brine Containing Air, H2S and CO2

CORROSION ◽  
1966 ◽  
Vol 22 (12) ◽  
pp. 325-335 ◽  
Author(s):  
PARVIS MEHDIZADEH ◽  
R.L. McGLASSON ◽  
J. E.LANDERS
Keyword(s):  
Carbon Steel ◽  
Corrosion Fatigue ◽  
Fatigue Performance

scholarly journals Comparison of Additively Manufactured vs. Conventional Maraging Steel in Corrosion-Fatigue Performance after various surface treatments

Procedia CIRP ◽  
2020 ◽  
Vol 87 ◽  
pp. 469-473
Author(s):  
Emmanouil Bouzakis ◽  
Apostolos Arvanitidis ◽  
Fotis Kazelis ◽  
Georgios Maliaris ◽  
Nikolaos Michailidis
Keyword(s):  
Maraging Steel ◽  
Corrosion Fatigue ◽  
Surface Treatments ◽  
Fatigue Performance

Study on the Effect of Cl- Concentration on the Corrosion Fatigue Damage in a Rolled AZ31B Magnesium Alloy by Acoustic Emission

2007 ◽  
Vol 353-358 ◽  
pp. 327-330 ◽  
Author(s):  
Hua Mao Zhou ◽  
Jian Qiu Wang ◽  
Qi Shan Zang ◽  
En Hou Han
Keyword(s):  
Acoustic Emission ◽  
Magnesium Alloy ◽  
Energy Release ◽  
Fatigue Damage ◽  
Corrosion Fatigue ◽  
Room Temperature ◽  
Fatigue Performance ◽  
Ae Energy ◽  
Magnesium Alloy Az31b ◽  
Wrought Magnesium Alloy

The fatigue performance of one widely used wrought magnesium alloy AZ31B in rolled form was studied using acoustic emission (AE). AE energy release during corrosion fatigue (CF) testing was measured at room temperature. It is found that AE energy release can express corrosion fatigue damage experienced by the material.

1119 Study on relationship between corrosion resistance and corrosion fatigue performance of the plated Mg alloy

2010 ◽  
Vol 2010 (0) ◽  
pp. 1031-1033
Author(s):  
Tomonori NAMITO ◽  
Sotomi ISHIHARA ◽  
Hisakimi NOTOYA ◽  
Sho KITAGAWA ◽  
Satoshi SUNADA
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Fatigue ◽  
Fatigue Performance ◽  
Mg Alloy

scholarly journals Durability method on corrosion fatigue performance of AH 32 steel

2019 ◽  
Vol 13 (48) ◽  
pp. 481-490 ◽  
Author(s):  
xiaoguang huang ◽  
zhiqiang wang
Keyword(s):  
Corrosion Fatigue ◽  
Fatigue Performance

scholarly journals Experimental Study on Corrosion Fatigue Performance of High-Strength Steel Wire with Initial Defect for Bridge Cable

2020 ◽  
Vol 10 (7) ◽  
pp. 2293
Author(s):  
Ying Wang ◽  
Wenhui Zhang ◽  
Yuqian Zheng
Keyword(s):  
Corrosion Fatigue ◽  
Steel Wire ◽  
High Strength ◽  
Fatigue Performance ◽  
Fatigue Load ◽  
Test Device ◽  
Initial Defect ◽  
Corrosive Solution ◽  
Combined Action ◽  
Bridge Cable

The durability problem in high-strength steel wire used for bridge cable is becoming more and more severe due to chlorine salt erosion, with the primary corrosion morphology of steel wire surfaces being pit corrosion. To simplify the pitting formation process, a machine-cut notch was used to represent a corrosion pit caused by electrochemical non-uniformity, and then the fatigue performance and corrosion fatigue performance of steel wire with initial defects were studied experimentally. A new type of test device was designed to carry out synchronous pulsating fatigue loading on multiple wires. A series of S-N curves of steel wire with initial defects under various loading conditions was obtained, and the effects of the concentration and pH value of the corrosive solution, and the shape and dimension of the initial defect on the fatigue corrosion performance of steel wire for bridge cables were investigated. The results show that the test device designed in this paper can effectively perform the life test under the combined action of corrosive medium and fatigue load, and can considerably shorten the duration of the fatigue test. Under the combined action of corrosive medium and fatigue load, the life of steel wire with an initial defect is significantly lower than that without consideration of the corrosion effect. The corrosion fatigue performance of steel wire decreases with the increase of acidity of the corrosive solution, rather than the increase of solution concentration. The life of steel wire with a narrow deep notch is much lower than that with a wide shallow notch. The stress concentration leads to a sharp reduction in wire life.

Bending Stiffeners for Extreme and Fatigue Loading of Unbonded Flexible Risers

2008 ◽  
Author(s):  
Russell Smith
Keyword(s):  
Corrosion Fatigue ◽  
Fatigue Loading ◽  
Rapid Onset ◽  
Offshore Platform ◽  
Fatigue Performance ◽  
Flexible Riser ◽  
Short Notice ◽  
Bending Radius ◽  
Flexible Risers

Bending stiffeners constrain the dynamic radius of flexible risers at offshore platform and subsea interfaces. The extreme bending and fatigue hotspots of a flexible riser occur near these interfaces. Conventional design of bending stiffeners first account for the extreme metocoean environment to ensure the riser does not bend below the minimum allowable bending radius (MBR). The stiffener design for extreme loading normally proves acceptable for less onerous fatigue loading provided the steel armour in riser annulus stays dry. Flexible riser operations have shown that there are several mechanisms for the annulus to loose its dry-state. A flexible riser that is not fatigue tolerant to a non-dry annulus often needs to be replaced at short notice or shut-down due to the rapid onset of corrosion fatigue of the steel armour wires. This paper demonstrates recent advances in designing bending stiffeners so that a flexible riser can sustain life of field operation with a non-dry annulus. These advances are accomplished by optimising the tapered profile of the bending stiffener and accounting for additional stiffening due to bending hysteresis in a flexible riser. A case study is presented to demonstrate the improvement in fatigue performance of a flexible riser.

Sign in / Sign up

Export Citation Format

Share Document