在高温下暴露于沥青前后对API-X100的基质和夹杂物进行非原位检查。

Ex Situ Examination of Matrix and Inclusions of API-X100 before and after Exposure to Bitumen at Elevated Temperature.

作者信息

Liang Hongxing, Asselin Edouard

机构信息

Department of Materials Engineering, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada.

出版信息

Materials (Basel). 2021 Sep 2;14(17):5007. doi: 10.3390/ma14175007.

DOI:10.3390/ma14175007

PMID:34501097

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8434324/

Abstract

The corrosivity of bitumen at 60 and 120 °C was examined by exposing American Petroleum Institute (API) X100 (yield strength 100 ksi, 690 MPa) pipeline steel to bitumen in an autoclave for 30 days. Prior to the autoclave measurements, the inclusion types in the API-X100 pipeline steel were characterized by scanning electron microscopy (SEM), and four types of inclusions were identified, according to their elemental compositions. The four types of inclusions and the surrounding matrix were characterized by ex situ SEM before and after exposure to bitumen. The results show that no obvious corrosion occured at the inclusions or the matrix after exposure at 60 and 120 °C.

摘要

通过将美国石油学会（API）X100（屈服强度100 ksi，690 MPa）管道钢在高压釜中与沥青接触30天，研究了沥青在60℃和120℃时的腐蚀性。在进行高压釜测量之前，通过扫描电子显微镜（SEM）对API-X100管道钢中的夹杂物类型进行了表征，并根据其元素组成鉴定出四种夹杂物类型。在接触沥青前后，通过非原位SEM对这四种夹杂物类型及其周围基体进行了表征。结果表明，在60℃和120℃下接触后，夹杂物或基体均未发生明显腐蚀。