Results 281 to 290 of about 1,113,785 (345)

Tribological properties and corrosion behavior of AC-HVAF sprayed nanostructured NiCrCoAlY-TiB2 coatings

, 2021
In this paper, agglomerated and dense nanostructured NiCrCoAlY-TiB2 composite powders prepared by spray drying and plasma spheroidization were used for activated combustion high velocity air fuel (AC-HVAF) spray.
Zou Yongming, Wu Yaosha, Gaopeng Zou, Gang Wang, Zhigang Zheng, Z. Qiu, Min Liu, D. Zeng   +7 more
semanticscholar   +1 more source

The Influence of Scale Formation on the AC Corrosion of API Grade X65 Pipeline Steel under Cathodic Protection

Corrosion, 2017
In a previous investigation, AC corrosion rate data generated from weight loss experiments was compared with the results from a model for AC corrosion that was developed using a modified Butler-Volmer approach.
E. Ghanbari, S. Lillard, C. Carpenter
semanticscholar   +1 more source

An Operator’s Experience with AC Induced Corrosion

CORROSION 2021, 2021
Abstract This paper presents a case study of a pipeline release attributed to AC induced corrosion. Shortcomings were identified in the operator’s integrity and corrosion programs which would normally prevent such a release. Based on the findings, the operator completed additional excavations, conducted an AC interference study, and ...
openaire   +1 more source

Researches on the Effects of AC Interference on CP Parameters and AC Corrosion Risk Assessment for Cathodic Protected Carbon Steel

Corrosion, 2017
The research status of AC corrosion risk assessment criteria for cathodic protected carbon steel was introduced initially. Then AC interference experiments were carried out to study the effects of AC interference on cathodic protection (CP) parameters ...
Yanxia Du, D. Tang, Min-xu Lu, Shaosong Chen   +3 more
semanticscholar   +1 more source

AC Corrosion Monitoring on High Pressure Pipelines

CORROSION 2015, 2015
Abstract Pipeline networks are increasingly paralleling overhead AC power lines, as more pipelines are laid in energy corridors or are built to carry gas into gas powered generating stations. As a consequence, there is an increasing requirement to quantify the damage AC corrosion may be causing to these pipelines.
Ian Thompson, Peter Martin
openaire   +1 more source

Challenging AC Corrosion Mitigation System for 100-Mile Long Pipeline

Corrosion, 2017
This paper details a comprehensive AC interference analysis and implementation of an extensive AC corrosion mitigation and monitoring system for a 100-mile (328 kilometer) portion of a regulated pipeline.
Dale D. Lindemuth, V. Kustova, D. Crabtree, S. Lisovoy   +3 more
semanticscholar   +1 more source

A theoretical approach for predicting AC-induced corrosion

Corrosion Science, 1994
Abstract A model that considers both anodic dissolution and cathodic reduction for corrosion of materials under superimposed sinusoidal voltages has been proposed and developed. A closed form solution permits the estimation of the corrosion current and corrosion potential.
S.B. Lalvani, X.A. Lin
openaire   +1 more source

AC Corrosion of Cathodically Protected Buried Pipelines: Critical Interference Values and Protection Criteria

Corrosion, 2015
Carbon steel pipes used to transport hydrocarbons and dangerous fluids are provided with corrosion prevention systems, namely an insulating coating and a cathodic protection (CP) system which reduces (or halts) corrosion rate below 10 µm/y, which is ...
A. Brenna, L. Lazzari, M. Ormellese
semanticscholar   +1 more source

Competition of AC and DC Current in AC Corrosion under Cathodic Protection

CORROSION 2002, 2002
Abstract An alternating current (AC) corrosion on buried pipeline under cathodic protection with impressed current system has been studied using coupon and ER probe. Coupons and ER probes were applied to the sites after the survey of AC voltages on buried gas transmission pipeline over the country.
HongSeok Song, YoungGeun Kim, SeongMin Lee, YoungTai Kho, YoungSoo Park   +4 more
openaire   +1 more source

Evaluation of AC corrosion under anodic polarization using microzone pH analysis

Corrosion Science, 2023
Wei Lan, Qianwei Li, Biao Wei, Wuxi Bi, Chengwei Xu, Daoqing Liu   +5 more
semanticscholar   +1 more source