公开(公告)号：US20200150025A1

公开(公告)日：2020-05-14

申请号：US16660880

申请日：2019-10-23

Applicant: ExxonMobil Research and Engineering Company

Inventor： Fang Cao ,  Yao Xiong ,  David S. Fischer ,  Jorge L. Pacheco

IPC: G01N17/00 ,  G01N23/2251 ,  G01N33/204 ,  C22C38/00

Abstract: Carbon steels are desirable for many applications due to their hardness and low cost. Susceptibility toward corrosion can complicate the use of carbon steels, and there is presently no ready way to predict susceptibility toward corrosion for a given carbon steel under a particular set of corrosive conditions. Methods for predicting susceptibility toward corrosion and determining the suitability of a carbon steel may comprise: obtaining a group of carbon steel samples, each carbon steel sample having an unknown rate of corrosion and a microstructure; measuring a quantity of carbides within the microstructure of each carbon steel sample having an unknown rate of corrosion; and determining a relative order of susceptibility toward corrosion within the group of carbon steel samples based upon the quantity of carbides within the microstructure of each carbon steel sample.