ID:
39030
Dettaglio:
SSD: Materials Science and Technology
Duration: 72
CFU: 9
Located in:
DALMINE
Url:
MECHANICAL ENGINEERING - 39-270/PERCORSO GENERALE Year: 1
Year:
2026
PART 1 (Courses 39010/6 CFU e 39030/9CFU) Basics of corrosion phenomena and their diagnosis: fundamental mechanisms and morphology of corrosion; recognition of the corrosion forms and controlling factors; fundamentals of prevention and protection methods; rules for design, management and maintenance; notions for corrosion monitoring. PART 2 (Course 39030/9CFU) Approach to the main corrosion problems in industries and natural environments.
Foundamentals of Chemistry and Metallic Materials
lectures with support of slides and laboratory exercises defined on the basis of the number of students
PART 1 (6CFU) Basics of metallic corrosion: morphology, corrosion rate, electrochemical mechanism, potential measurement and characteristic curves. Anodic curve of active and active-passive materials. Cathodic curve of hydrogen evolution and oxygen reduction. Free corrosion potential and corrosion current density. Anodic and cathodic polarization. Corrosion forms: generalized corrosion, galvanic corrosion, pitting corrosion, crevice corrosion, selective corrosion, fretting corrosion, erosion-corrosion, stress corrosion cracking, corrosion fatigue, hydrogen embrittlement, corrosion lby stray current. Corrosion behavior of carbon steel or low-alloyed steel, stainless steel, copper alloys, aluminum alloys, nickel alloys, titanium. Prevention of corrosion: design rules. Protection by environment modification: oxygen removal by physical methods and chemical methods. Corrosion inhibitors: types and addition methods. Protection by coatings: metallic coatings, paint systems, conversion layers. Methods for surface preparation, application and control. Cathodic protection: protection criteria for carbon steel and active-passive metal. Cathodic protection by galvanic anodes and impressed current systems. Design and monitoring. Temporary protection technique. Selection of protection methods related to the corrosion form. Material selection. PART 2 (3CFU) Corrosion and protection in natural environments, industrial plants and civil structures: atmospheric corrosion, corrosion in natural and process waters, corrosion in soils, corrosion in oil and gas. Durability of reinforced concrete structures. High temperature corrosion (dry corrosion): oxidation and mechanisms of film growth, formation of complex scale, internal oxidation. Problems of hot corrosion and main environments. Corrosion by molten salts and metals. High temperature alloys.