Objectives:  

Acquire knowledge of :

 

- the main modes of corrosion and metallurgical degradation encountered in major chemical environments.

- the main families of corrosion-resistant metallic materials in the chemical industries.

 

Target group:  

- This course is aimed at technicians or engineers from new works, process, maintenance and inspection departments with at least 6 months' professional experience.

- Maximum 8 to 10 people per session. 

 

Course content 

Day 1 

Degradation modes in major chemical environments

 

09:00 - 10:30  

- Initial quiz on materials and corrosion

- Introduction to mechanical, thermal and chemical degradation phenomena: process conditions/environments/materials/stresses

 

10:30 - 10:45  

Break 

 

10:45 - 12:15  

Corrosion mechanisms in metallic materials

- Low-temperature corrosion phenomena :

    o Generalized corrosion 

    o Localized corrosion 

    o Stress corrosion

    o Galvanic corrosion

    o Erosion and abrasion corrosion

 

- High-temperature corrosion phenomena : 

o Oxidation, 

o Sulfuration, nitridation, carburization

 

12:15 - 13:15  

Lunch 

 

13:15 - 14:45 Material characteristics : 

- Mechanical properties of metallic materials: yield strength, elongation, hardness, resilience, toughness.

- Stresses: service and residual

- Specifying and checking mechanical properties.

- Failure modes: ductile and brittle

- Prevention of brittle fracture

 

14:45 - 15:00  

Break 

 

15:00 - 16:30  

Mechanical and thermal degradation :

- Fatigue and corrosion fatigue

- Creep and creep fatigue

- Microstructural changes: softening and embrittlement

 

Day 2 

Metallic materials in chemistry

09:00 - 10:30 

The main families of materials, their properties and standardization : 

- Carbon and low-alloy steels

- Stainless steels: ferritic, austenitic, super-austenitic, duplex 

 

10:30 - 10:45  

Break 

 

10:45 - 12:15  

- Nickel alloys and bases

- Titanium alloys 

- Product forms: cast, forged, rolled, plated. 

 

12:15 - 13:15  

Lunch

 

Corrosion prevention in major chemical environments

13:15 - 14:45  

Corrosion in major chemical environments:  

- Mineral acids

- Organic acids

- Caustic media

-Chloride media

 

14:45 - 15:00  

Break

 

15:00 - 16:30  

- Corrosion in major chemical environments (continued) :

   o Materials used

   o Critical factors

   o Types of corrosion 

   o Prevention

   o Documentary sources

 

-Exit quiz

 

Implementation / working method: 

Interactive 2-day face-to-face course, with material shared at the start of the course in paper and digital formats. 

A questionnaire will be sent to trainees before the course in order to adapt the course content to participants' expectations as far as possible.

A course evaluation questionnaire will be distributed to participants at the end of the course.

Course language and materials
French