Journée CND Capme’up, le jeudi 08 décembre 2016 à Saint-Etienne

Mis en avant

capmeup-logo1  Testez gratuitement vos produits !

Tri de pièces suivant leur taille de grain, analyse des contraintes résiduelles, mesure de  l’épaisseur traitée superficiellement, détection des brûlures de rectification, recherche de fissures et corrosion, contrôle des soudures, défauts de surface sur matériaux composites ou métalliques, simulation numérique, etc. : telles sont les technologies CND mises gratuitement au service des entreprises lors d’ateliers CND personnalisés, commentés et expliqués sur démonstrateurs par les experts du Cetim.

Porté par les instituts Carnot Cetim, CEA List et Ifpen Transport Énergie, le programme Capme’Up, initié dans le cadre des investissements d’avenir (Appel à projets ANR Valorisation Carnot), met, notamment, trois plateformes technologiques au service des entreprises : contrôles non destructifs (CND) innovants, robotique interactive, intégration système. Le programme possède un site web unique (www.capmeup.fr).

 

Ateliers CND Capme’Up : plus que 3 dates pour testez gratuitement vos produits !

Mis en avant

capmeup-logo1Tri de pièces suivant leur taille de grain, analyse des contraintes résiduelles, mesure de  l’épaisseur traitée superficiellement, détection des brûlures de rectification, recherche de fissures et corrosion, contrôle des soudures, défauts de surface sur matériaux composites ou métalliques, simulation numérique, etc. : telles sont les technologies CND mises gratuitement au service des entreprises lors d’ateliers CND personnalisés, commentés et expliqués sur démonstrateurs par les experts du Cetim.

Porté par les instituts Carnot Cetim, CEA List et Ifpen Transport Énergie, le programme Capme’Up, initié dans le cadre des investissements d’avenir (Appel à projets ANR Valorisation Carnot), met, notamment, trois plateformes technologiques au service des entreprises : contrôles non destructifs (CND) innovants, robotique interactive, intégration système. Le programme possède un site web unique (www.capmeup.fr).

Prochains ateliers :

  • lundi 05 décembre 2016 à Nantes,
  • mercredi 14 décembre 2016 à Mulhouse,
  • mercredi 21 décembre 2016 à Senlis.

Pour retrouver les programmes pour toutes les dates en cliquant ici

Sulfide stress corrosion cracking and hydrogen induced cracking

1-s2-0-s2213290213000424-gr11-s2-0-s2213290213000424-gr2

A case study published in « Case Studies in Engineering Failure Analysis » on www.sciencedirect.com.

The wellhead flow control valve bodies which are the focal point of this failure case study were installed in some of the upstream facilities of Khangiran’s sour gas wells. These valve bodies have been operating satisfactorily for 3 years in wet H2S environment before some pits and cracks were detected in all of them during the periodical technical inspections. During investigation many cracks were observed on the inner surface of the valve body grown from the surface pits. The results indicate that flow control valve body failed due to combination of hydrogen induced corrosion cracking (HICC) and sulfide stress corrosion cracking (SSCC). According to HIC and SSC laboratory tests and also with regard to cost of engineering materials, it was evident that the best alternative for the valve body alloy is A217-WC9 cast Cr–Mo steel.

Read more

Vallourec mêle performance en étanchéité et conditions extrêmes.

2016-11-17_11h50_21Est-il possible d’effectuer des essais d’étanchéité en mettant en œuvre des ressources moins importantes, tout en conservant la représentativité du fonctionnement des produits ? C’est la question posée par Vallourec, spécialiste des tubes sans soudure pour l’industrie du pétrole et du gaz,  aux experts du Cetim, en les chargeant de démontrer la faisabilité d’essais d’étanchéité sur une portion réduite (la zone de connexion) de ses tubes Oil country tubular goods (OCTG).

Lire l’article …

An investigation of cracking causes in an outlet RTJ flange in ISOMAX unit

2016-11-16_18h55_18A paper published in « Case Studies in Engineering Failure Analysis« , available on sciencedirect.com.

Corrosion has always been a problem in the petroleum refining and the petrochemical operations. The equipment of ISOMAX unit, such as reactors, furnace tubes, valves, and pipelines are frequently performed at high temperatures and high pressure condition. This working conditions, accelerates the failures due to corrosion. Therefore, heat- and corrosion-resistant alloys, e.g., austenitic stainless steels, have been widely used in this unit because of their excellent corrosion resistance, mechanical strength and toughness.

This paper describes failure analysis procedure of a cracked high pressure 321 SS RTJ flange in ISOMAX unit. In order to get conclusions related to crack propagation mechanisms of the flange, some investigations were done on the cracked flange that is mentioned in the body of the paper.

Read more …

Failure analysis of titanium alloy fasteners for aerospace applications

2016-11-16_18h46_14A paper published in « Case Studies in Engineering Failure Analysis« , available on sciencedirect.com.

As a qualification of bolt for flight assembly, the bolt assembly has undergone proof pressure test at 2.4 MPa, Vibration test at frequency range of 20–100 Hz, ±3 db/oct for 120 s in both lateral and longitudinal directions and flight acceptance test. During routine visual inspection before electrical check, it was observed in one of the three fasteners that the head of the bolt had got sheared off from the shank portion of bolt. Further, a failure analysis was carried out on the failed bolt.

The objective of the study is metallurgical analysis of the failed bolt, fractography study to find out the root cause of the failure, and optimization of processing parameters for fastener manufacturing.

Read more ….

Catastrophic failure of a carbon steel storage tank due to internal corrosion

A paper published in « Case Studies in Engineering Failure Analysis« , available on sciencedirect.com.

Catastrophic failure of a 10 m high, 8 m diameter steel storage tank containing approximately 350 m3 of waste solvent led to a significant environmental incident in 2009. An investigation was carried out to establish the root cause and to learn lessons that might prevent a reoccurrence.

Read more …

Failure analysis of a high strength low alloy  steel pressure vessel

2016-11-16_18h21_36A paper published in « Case Studies in Engineering Failure Analysis« , available on sciencedirect.com.

High strength low alloy (HSLA) steel with a nominal composition of 0.15C–1.25Cr–1Mo–0.25V is being extensively used in space programme. Owing to its ease of fabrication and welding, a tank was fabricated out of this alloy. The tank is used to contain strontium per chlorate which on combustion develop secondary thrust, effectively used during attitude control of satellite launch vehicle. During one of the routine qualification tests, a tank had failed at an internal pressure of 109 bar, against a designed proof pressure of 120 bar.

Failure was initiated from long seam weld of a cylindrical shell and propagated into the parent material thereafter. Detailed metallurgical investigation has been carried out to understand the cause of failure. This paper brings out the detail of investigation carried out.

Read more ….

Non-Destructive Investigation of Bulk Residual Stress in Automobile Brake Pads with its Service Life

2016-11-16_18h02_45A paper published in « Journal for Foundations and Applications of Physics »,  available online at sciencefront.org.

Automobile brake systems transform kinetic energy into heat for the purpose of speed control. During this operation, rapid heating and cooling cycles cause the formation of residual stress in the brake pad backing plate. In this study, the relation between residual stress magnitude and the operation period is investigated to predict the service life of brake pads. ….

More at : http://sciencefront.org/ojs/index.php/jfap/article/view/45/34

Design and fabrication of Impact Die for Powder Metallurgy

2016-11-16_17h43_25A paper publihed in « Materials Today: Proceedings », available online at www.sciencedirect.com

Die design is one of the most important steps in Powder Metallurgy process because the shape and attributes of the die will directly affect the final component. Die design has a number of steps and considerations to be made before fabrication. This project is an attempt to design and fabricate a die for cold compaction process used in the powder metallurgy process.

More at :  http://www.pmme.co.in/papers/EMT-388.pdf