Copper Alloys: Corrosion

A Simple and Efficient Extraction Method for the Preconcentration of Copper in Tap Water and Linden Tea Samples Prior to FAAS Measurement

“…[4] This element is known as high corrosion resistance which draws attention for its usage in industrial areas. [5,6] Furthermore, copper has widespread commercial usage because of its numerous beneficial features such as thermal and electrical conductivity, easy fabrication, low cost, and malleability. [5,7] In addition, copper is also utilized in both clinical applications and medicine due to its antimicrobial and biostatic properties.…”

“…[5,6] Furthermore, copper has widespread commercial usage because of its numerous beneficial features such as thermal and electrical conductivity, easy fabrication, low cost, and malleability. [5,7] In addition, copper is also utilized in both clinical applications and medicine due to its antimicrobial and biostatic properties. [4,8] On the other hand, Cu is classified as heavy metal that cannot be degraded by biological processes and may show toxic or carcinogenic properties as a result of their accumulation in living bodies.…”

Corrosion–microstructure interrelations in new low-lead and lead-free brass alloys

“…An important application of many commercial brass alloys involves transport of drinking water, including plumbing and fittings [2][3][4][5][6]. In this environment, brass can be subject to a corrosion mechanism called dezincification, in which zinc is selectively removed from the brass, thus leaving a porous copper matrix with poor mechanical properties that can result in crack propagation and mechanical failure [3,4,[7][8][9][10]. To prevent this, various manufacturers add microadditions (0.03%) arsenic to their alloy [1,[11][12][13][14][15].…”

“…However, poor heat treatment can reduce this beneficial effect by precipitating the zinc-rich body-centred cubic β-phase. Arsenic cannot protect the β-phase from dezincification so the alloy is thus vulnerable to dezincification attacks [1,[3][4][5]7].…”

“…Arsenic dissolves in solid solution within the dominant phase of these alloys, the face-centred cubic α-phase [9,14,15] which significantly increases its dezincification resistance [1,3,5,7,16]. However, poor heat treatment can reduce this beneficial effect by precipitating the zinc-rich body-centred cubic β -phase.…”