sponsored by the National Key R&D Program of China(No.2022YFC2806200);the National Natural Science Foundation of China(No.52001055);the Open Foundation of State Key Laboratory of Structural Analysis for Industrial Equipment(GZ22118).
Corrosion poses a major threat to the safety of transportation pipelines.Therefore,it is crucial to have an in-depth understanding of corrosion mechanisms in pipeline steels for the effective management of pipeline in...
funded by the National Natural Science Foundation of China(Nos.52104334,51874195 and 52074179);Center for Advanced Solidification Technology(CAST)and State Key Laboratory of Advanced Special Steel.
In order to investigate the modification behavior and regularity of inclusions in X80 pipeline steel by Mg-treatment, the comparative industrial experiments of Mg-treatment and Ca-treatment in X80 pipeline steel were ...
Funding was provided by Petrochina Southwest Oil&Gas Field Company,20220305-12,for Yan-ran Wang.
The experiments studying on the components of pure erosion, pure corrosion and their synergism were performed in multiphase systems containing sand particles, NaCl solution and condensate oil. The influence of condens...
supported by the National Key R&D Program of China(2021YFB4001601);the Youth Innovation Promotion Association CAS(2022187).
This study investigated the effect of pressure,pre-charge time,punch velocity and oxygen content on the mechanical properties of X42 pipeline steel in gaseous hydrogen environment by using small punch test.When expose...
supported by the National Science Foundation of China(Grant numbers 52274062);Natural Science Foundation of Liaoning Province(Grant numbers 2022-MS-362)。
Magnetic field and microorganisms are important factors influencing the stress corrosion cracking(SCC)of buried oil and gas pipelines. Once SCC occurs in buried pipelines, it will cause serious hazards to the soil env...
This work was supported by the National Key R&D Program of China(2021YFB4001601);the Youth Innovation Promotion Association CAS(2022187).
The effects of hydrogen charging time and pressure on the hydrogen embrittlement(HE)susceptibility of X52 pipeline steel material are studied by slow strain rate tensile tests.The fracture morphologies of the specimen...
Financial support from the Scientific and Technological Innovation Team for the Safety of Petroleum Tubular Goods at the Southwest Petroleum University(Grant No.2018CXTD01);“The Young Scholars”Development Fund of the Southwest Petroleum University of China is appreciated.
Hydrogen embrittlement of pipelines depends on the hydrogen-induced cracking behavior of the pipeline steel microstructure.Based on molecular dynamics analysis,the ferrite–cementite(α-Fe/Fe3C)lamellar atomic structu...
the support from the Na-tional Natural Science Foundation of China(No.52101092,and 52231003);the Natural Science Foundation of Hubei Province of China(No.2021CFA023);the International Science and Technology Cooperation Project of Hubei Province(2021EHB006);the Young Elite Scientists Sponsorship Program by CAST(No.20210324);the Petro China Innovation Foundation(No.2020D-5007-0311)。
The synergistic effects of Nb and Mo on hydrogen-induced cracking(HIC)of pipeline steels were studied experimentally and numerically.The results showed that Mo was primarily segregated at grain-boundaries(GBs)or solid...
supported by the National Natural Science Foundation of China(Grant Nos.52122408,51901013,52071023);financial support from the Fundamental Research Funds for the Central Universities(University of Science and Technology Beijing)(Grant Nos.FRF-TP-2021-04C1,and 06500135);supported by USTB MatCom of Beijing Advanced Innovation Center for Materials Genome Engineering。
Pipeline transportation is one of the most economical ways to transport crude oil and natural gas over long distances.High toughness is one of the important qualities of pipeline steel to ensure safe transportation,wh...
financially supported by the National Natural Science Foundation of China(No.52034004).
This study explored a strategy for predicting the proportion of martensite–austenite(M–A)constituents and impact toughness of stir zone(SZ)on X80 pipeline steel joints welded by friction stir welding(FSW).It is foun...