Mechanically Assisted Corrosion of Stainless Steel Alloys » książka
Mechanically Assisted Corrosion of Stainless Steel Alloys
ISBN-13: 9783639149616 / Angielski / Miękka / 2009 / 128 str.
Although metals provide good mechanical properties such as fracture toughness, fatigue resistance and strong load bearing properties, they are still susceptible to encountering surface abrasion and wear. These local deformations on metal surfaces cause passive film instability or breakdown and the subsequent cascading events result in spontaneous electrochemical interactions to regain electrochemical stability. This transient phenomenon often leads to corrosion, defined as the "electrochemical attack" on metal surfaces. Tribology studies done in metal implant applications have shown that corrosion is accelerated during mechanical events such as fretting and wear. This study presents two commonly used medical implant applications, modular hip tapers and cardiovascular stents. We present a test setup for each of these implants to estimate the effects of fretting corrosion.
Although metals provide good mechanical propertiessuch as fracture toughness, fatigue resistance andstrong load bearing properties, they are stillsusceptible to encountering surface abrasion andwear. These local deformations on metal surfacescause passive film instability or breakdown and thesubsequent cascading events result in spontaneouselectrochemical interactions to regainelectrochemical stability. This transient phenomenonoften leads to corrosion, defined as the"electrochemical attack" on metal surfaces. Tribologystudies done in metal implant applications have shownthat corrosion is accelerated during mechanicalevents such as fretting and wear.This study presents two commonly used medical implantapplications, modular hip tapers and cardiovascularstents. We present a test setup for each of theseimplants to estimate the effects of fretting corrosion.
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