Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry

Rusanescu, Carmen Otilia; Rusanescu, Marin

Carmen Otilia Rusanescu, Marin Rusanescu

Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry

Abstract:

In the present study the influence of vanadium microalloy on kinetics of transformation in medium carbon steel is studied. In order to choose the thermal treatment temperatures at optimal values, the steel transformation points were determined by dilatometric analysis. The bainitic transformation point was obtained under fast cooling conditions. The industrial experiments on the hardening and tempered of steel were performed in five variants of the oil hardening and reversing treatment, with austenitizing temperatures for hardening and the tempered temperature. The steel quality was determined, the influence of the temperature on the microalloyed steel structure with vanadium was highlighted. The mechanical characteristics of the pipes after the thermal hardening and tempering were analyzed after the traction test and the shock break. Electron microscopy analysis on extraction replicas revealed aspects of precipitation, globular constituent after return is finely and uniformly distributed, austenitization at lower temperature, resulted in a finer austenitic grain [20]. The finer structure obtained after hardening resulted in heat treatment to return to precipitation of fine and uniformly distributed carbides. It has been found that the influence on bainitic transformation depends on temperature; the steel structure after the quenching and tempering treatment was analyzed by optical and electronic microscopy. The development of welding consumables is permanently challenged with matching the increasing strength and toughness of thermomechanically treated or hardening and tempered steels.

Keywords:
hardening; micro-alloying steel; tempering; mechanical properties; microstructure; microscopy

Issue: 2018, Volume 69, Issue 9

Pages: 2357-2360

Publication date: 2018/10/15

https://doi.org/10.37358/RC.18.9.6533

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
RUSANESCU, C.O., RUSANESCU, M., Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry, Rev. Chim., 69(9), 2018, 2357-2360.

Vancouver
Rusanescu CO, Rusanescu M. Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry. Rev. Chim.[internet]. 2018 Sep;69(9):2357-2360. Available from: https://doi.org/10.37358/RC.18.9.6533

APA 6th edition
Rusanescu, C.O., Rusanescu, M. (2018). Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry. Revista de Chimie, 69(9), 2357-2360. https://doi.org/10.37358/RC.18.9.6533

Harvard
Rusanescu, C.O., Rusanescu, M. (2018). 'Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry', Revista de Chimie, 69(9), pp. 2357-2360. https://doi.org/10.37358/RC.18.9.6533

IEEE
C.O. Rusanescu, M. Rusanescu, "Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry". Revista de Chimie, vol. 69, no. 9, pp. 2357-2360, 2018. [online]. https://doi.org/10.37358/RC.18.9.6533

Text
Carmen Otilia Rusanescu, Marin Rusanescu,
Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry,
Revista de Chimie,
Volume 69, Issue 9,
2018,
Pages 2357-2360,
ISSN 2668-8212,
https://doi.org/10.37358/RC.18.9.6533.
(https://revistadechimie.ro/Articles.asp?ID=6533)
Keywords: hardening; micro-alloying steel; tempering; mechanical properties; microstructure; microscopy

RIS
TY - JOUR
T1 - Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry
A1 - Rusanescu, Carmen Otilia
A2 - Rusanescu, Marin
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2018
VL - 69
IS - 9
SP - 2357
EP - 2360
UR - https://doi.org/10.37358/RC.18.9.6533
KW - hardening
KW - micro-alloying steel
KW - tempering
KW - mechanical properties
KW - microstructure
KW - microscopy
ER -

BibTex
@article{RevCh2018P2357,
author = {Rusanescu Carmen Otilia and Rusanescu Marin},
title = {Process Design in the Manufacturing of Pipes for Chemical and Petrochemical Industry},
journal = {Revista de Chimie},
volume = {69},
number = {9},
pages = {2357-2360},
year = {2018},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.18.9.6533},
url = {https://revistadechimie.ro/Articles.asp?ID=6533}
}

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