Products tagged with 'low cycle fatigue'

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51317--9669-Effect of Strain Rate on the Crack Growth Rate of 718 Under Cathodic Potentials

Product Number: 51317--9669-SG

ISBN: 9669 2017 CP

Author: Thodla Ramgopal

Publication Date: 2017

$20.00

Crack growth rate (CGR) behavior of UNS N07718 was investigated as a function of K-rate in two different environments under cathodic potentials, a mild environment containing 3.5wt% NaCl and a more aggressive environment containing 0.5M H2SO4.

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Coke Drum Weld Design for Better Fatigue Performance

Product Number: 51323-19182-SG

Author: Haixia Guo, Frank Vacha, Sunil Nayar, Mark Odegard, Enzo Falo, Simon Yuen

Publication Date: 2023

$20.00

Delayed coking process is one of the major process technologies used for breaking down the heavy, long chain hydrocarbon molecules of the residual oil into shorter coker gas oil (and petroleum coke as by-product). Severe cyclic operating conditions are involved in these units. The main vessels, coke drums, are exposed to multiple damage mechanisms, as summarized in API 934G and J.

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Understanding Sour Service Performance of Coiled Tubing

Product Number: MPWT19-14407

Author: Bruce Reichert, Claudio Morales, Martin Valdez

Publication Date: 2019

$0.00

Coiled tubing is a long (sometimes more than 25000 feet) electrical resistance welded pipes that is uncoiled for the deployment of oil and gas wells to perform a variety of jobs that involve subjecting the pipe to high pressure, axial loads, and contact with acidification, and production environments among others. Since the pipe is coiled and deployed multiple times for different jobs during its lifespan, it is typically plastically deformed and fatigued.
This paper discusses the challenges of improving the performance of this welded pipe base material, as well as its multiple welds, when facing an inhibition failure that could cause exposure to corrosive and/or embrittlement environments.
The product development process resulted in the complete modification of steel chemistry, its welding procedures and heat treatment process. The testing program includes, among other tests, the exposure of the pipe to different environments, followed by fatigue testing to determine the remaining material resistance after such exposure.

Products tagged with 'low cycle fatigue'

51317--9669-Effect of Strain Rate on the Crack Growth Rate of 718 Under Cathodic Potentials

Coke Drum Weld Design for Better Fatigue Performance

Understanding Sour Service Performance of Coiled Tubing

Association for Materials Protection and Performance