Corrosion effects on the granular nano mechanical properties of buried cast iron

作者: Muhammad Wasim , Dilan Robert , Chun-Qing Li

DOI: 10.1016/J.ENGFAILANAL.2020.104970

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摘要: Abstract Considerable research reported in literature shows that corrosive soil degrades the bulk mechanical properties of buried cast iron pipes due to cracks and degradation microstructure. The nanomechanical grains can also be affected by corrosion before properties. However, influence corrosivity on at granular level is remained unresolved date. This paper addresses this gap and presents measurements performed corroded specimens maximum degradation was quantified. Specimens after 545 days burial conditions were tested nanoindentation for determining their analysis test results showed a significant reduction nano elastic hardness diffusion hydrogen from surrounding environments. high rates found proportional inducing modulus grains. A relation prediction as function rates, pH moisture content clay developed. finding current it apart properties, degraded environments which turn affect service life. Furthermore, understanding science assist manufacturing sustainable ferrous resistive soils.

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