Corrosion cracking resistance of hoisting ropes

Abstract

The corrosion occurring in hoisting ropes used in transport machinery, directly and indirectly, significantly damages the global economy every year. The aim of this study is to investigate the behavior of different types of steel wire hoisting ropes used in cranes, ships, and ports, regarding their resistance to corrosion through the method of stress corrosion cracking and to determine which types of steel ropes should be utilized in environments exposed to severe corrosion. First of all, hessian and steel core ropes were selected from 6 × 19 Standard, 8 × 19 Seale, and 6 × 36 Warrington Seale rope groups of the same diameter. Prestress corrosion tests of the ropes were carried out based on the ASTM G49 standard, with the prestress corrosion test device designed and manufactured in accordance with different rope types. The results obtained by performing appropriate treatment methods against corrosion, such as hot-dip galvanizing and painting with zinc epoxy primer, were compared with the test results of ungalvanized ropes. Thus, the degree improvement against corrosion was determined.