Corrosion-cavitation-erosion: surface morphology study of a carbon steel in a multiphasic saline bath

被引：0

作者：

da Silva, Fernando Nunes ^{[1
]}

de Oliveira, Plinio Melo ^{[1
]}

Tinoco de Souza Araujo, Nicolas Matheus da Fonseca ^{[1
]}

de Carvalho Filho, Eugenio Teixeira ^{[1
]}

da Cunha, Jardel Dantas ^{[2
]}

da Silva, Djalma Ribeiro ^{[3
]}

de Medeiros, Joao Telesforo Nobrega ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Norte, Study Grp Tribol & Struct Integr, Ave Senador Salgado Filho S-N,Mailbox 1524, BR-59072970 Natal, RN, Brazil

[2] Rural Fed Univ Semiarid, Engn Ctr, 572 Univ Campus, BR-59625900 Mossoro, RN, Brazil

[3] Univ Fed Rio Grande do Norte, Chem Inst, Ave Senador Salgado Filho 1524, BR-59072970 Natal, RN, Brazil

来源：

MATERIA-RIO DE JANEIRO | 2019年 / 24卷 / 01期

关键词：

Tribochemistry; Corrosion; Erosion; Cavitation; Surface Texture; IRON; MODEL;

D O I：

10.1590/S1517-707620190001.0639

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During the production of petroleum and gas, the equipments employed for this activity are subjected to synergetic wear mechanisms, such as corrosion, corrosion-cavitation and corrosion-cavitation-erosion. Laboratory experiments has been performed to reproduce some of these mechanisms, however, sometimes the tests is not capable to recreate the complexities caused by hydrodynamic flows, physico-chemical and mechanical non-linearities. The main objective of this work is to evaluate specimens of low carbon steel under laboratory conditions, such as corrosive, cavitative-corrosive (CO2) and corrosive-erosive (CO2 + SiO2) environments. During the tests, the specimens were subjected to a stirring aqueous saline solution (0 and 5.0 m/s) at two levels of temperature, with gas injection (5.0 L/min) and contaminated with by solids particles of SiO2 (2.5% mass). The surface of the specimens subjected to upstream flow (0 degrees in a cylindrical generatrix of the specimen), and downstream flows (180 degrees) were analyzed by profilometry. The measurements of roughness and waviness of all specimens were statistically analyzed at a confidence level of 95% and significant differences observed in some matrices were discussed. The results suggest that the wear mechanisms that act in the upstream generatrix differ from that of specimen downstream.

引用

页数：15

共 25 条

[1]

ABAYARATHANA D., 2001, CORROSION

[2]

ANDRADE C. A., 2000, IDENTIFICACAO MECANI

[3]

ASTM, G18506 ASTM

[4]

Bootle M, 2009, CALG PUMP S NOV

[5]

Copson H.R., 1960, CORROSION-US, V16, P86

[6]

Eliassen R., 1956, Jour. AWWA, V48, P1005

[7]

Gentil V., 2007, CORROSAO

[8]

Han J, 2009, Characterization of the passive film on mild steel in CO 2 environments

[9] Carbon dioxide corrosion in oil and gas production - A compendium [J].

Kermani, MB ;

Morshed, A .

CORROSION, 2003, 59 (08) :659-683

[10] Impact of flow rate on corrosion of cast iron and quality of re-mineralized seawater reverse osmosis (SWRO) membrane product water [J].

Liang, Juan ;

Deng, Anqi ;

Xie, Rongjing ;

Gomez, Mylene ;

Hu, Jiangyong ;

Zhang, Jufang ;

Ong, Choon Nam ;

Adin, Avner .

DESALINATION, 2013, 322 :76-83

← 1 2 3 →