A photo of Elvis (center) with his doctor Nick Nichopoulos (back) taken shortly before his death. (Courtesy of Nick Nichopoulos) LOS ANGELES â It has been widely reported that Elvis Presley died in 1977 from cardiac arrhythmia, an irregular heartbeat, possibly brought on by drug dependency, obesity and a weak heart.
If the Ionic or Electro-chemical theory of corrosion, as described in the preceding chapter, be accepted it is then easy to divide all practical cases of corrosion into three types : (1) Auto Corrosion, (2) Contact Corrosion, and (3) Externally Induced Corrosion. (reference).
CORROSION OF METALS AND ITS PREVENTION. WHAT IS CORROSION. Corrosion is the deterioration of materials by chemical interaction with their environment. The term corrosion is sometimes also applied to the degradation of plastics, concrete and. wood, but generally refers to metals. The most widely used metal is iron (usually as steel)