[MATLS 1M03] - Final Exam Guide - Ultimate 24 pages long Study Guide!

• School: McMaster University
• Department: Materials Science and Engineering
• Course: MATLS 1M03
• Professor: Shooka Mahboubi

Document Summary

Corrosion: originates from the word corrodere in latin, which means to gnaw to pieces. Abstract sense : relationships, emotions: definition: the degradation or deterioration of any physical properties of a material by means of a chemical reactions with its environment. Control strategies: materials selection, anodic/cathodic protection, coatings. It"s a(cid:448)aila(cid:271)le, (cid:272)asta(cid:271)le, (cid:373)a(cid:272)hi(cid:374)a(cid:271)le, for(cid:373)a(cid:271)le, (cid:449)elda(cid:271)le, lightweight, coatable, biosorbable, and recyclable: challenge is the thermodynamics: Corrodes because of hydrogen and in batteries: challenge in the kinetics: It is favorable to react: application: mferd initiative: Replacing steel, which is heavy, with magnesium. Friction stir welding (fsw: metallic bond created below melting point. Materials 1m03 guest lecture; page 2: limited to no porosity within stir zone or haz, eliminates solidification problems, eliminates metallurgical problems associated with use of filler wire, no shielding gas required. Back to magnesium: used in cars as an alloy with many coats and pretreatments that allow for the magnesium to remain unreactive in plain air, or in the rain.