New Steel Plates for the Oil and Gas Industry

Bannenberg, Norbert; Streißelberger, A.; Schwinn, Volker

doi:10.1002/srin.200705878

Cited by 7 publications

(8 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on fundamental research in Germany, USA, UK, Germany, and Japan, the fundamental understanding was further developed in metallurgical laboratories. Pioneers at that time were Haneke, Schmidtmann, Meyer, Kaspar, Streißelberger, DeArdo, Jonas, Sellars, Hodgson, Tamura und Tanaka, Saito, Ouchi, Militzer, and many others. The basic idea was to improve the strength and toughness behavior of structural steels by grain refining.…”

Section: A Brief Historical Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Thermomechanical Treatment of Steels - A Real Disruptive Technology Since Decades

Buchmayr

2017

steel research int.

View full text Add to dashboard Cite

The basic concept of thermomechanical treatment (TMT) or thermomechanical controlled processing (TMCP) is responsible for the development of many advanced steel grades with improved mechanical properties during the last 50 years. A retroperspective view, an explanation of the most important influencing factors and a presentation of the enormous benefits for the costumer are given in this review. A sound knowledge on the synergism of recrystallization, precipitation, and transformation phenomena forms the basis to produce fine, homogeneous microstructures with improved properties. Starting from structural steels, improvements can be achieved with respect to higher strength and toughness values combined with better weldability and formability, mainly based on reduction of carbon content and finer grain sizes. The benefits in the application areas are described in detail. TMCP is not only used for flat products, but also for long products and forgings of different steel grades. Physical simulation and modeling contribute significantly to these developments, which also form the basis for computer-aided control or real-time online-models. In the next years, a complete shift to cyber physical systems (CPS) is predicted, which needs an aligned education effort. REVIEW A Brief Historical ReviewSince the mid-sixties, steel mills began to produce fine grained structural steels by lowering the final rolling temperature. Based on fundamental research in Germany, USA, UK, Germany, and Japan, the fundamental understanding was further developed in metallurgical laboratories. Pioneers at that time were Haneke, [10] Schmidtmann, [11,12] Meyer, [13,14] Kaspar, [15][16][17][18][19][20][21][22][23][24] Streißelberger, [9,15,[25][26][27] DeArdo, [28,29] Jonas, [30][31][32][33] Sellars, [34][35][36][37] Hodgson, [38][39][40][41][42] Tamura und Tanaka, [43] Saito, [44] Ouchi, [45] Militzer, [46,47] and many others. The basic idea was to improve the strength and toughness behavior of structural steels by grain refining. Compared to conventional hot rolling at high rolling temperatures, the new steels were rolled at lower final rolling temperature. It was found that repeated recrystallization of the austenite structures leads to a decrease of grain size, but there is a limit, which is difficult to overcome. Deformation at temperatures, where no recrystallization takes place was successful in the conditioning of austenite having a dense population of glide planes, high dislocation density, and a high intrinsic energy, which provided a high density of nucleation sites for the transformation products of austenite.At the beginning, mainly ferrite plus pearlite microstructures were considered and later the role of rapid cooling became an additional opportunity to increase the strength level.Higher cooling rates or higher undercooling increase the driving force and with a lower diffusivity a finer microstructure like bainite and martensite can be reached.A comparison of the contributions of the strengthening mechanism in a commercial hot rolle...

show abstract

Section: A Brief Historical Reviewmentioning

confidence: 99%

“…Additional microstructural modifications based on different cooling strategies have led to even higher strength levels at moderate toughness and multiphase steels were created for the automotive industry. Front runners at that time were the oil and gas industry by a rapid development of steel grades from X60 to X120 within three decades …”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Treatment of Steels - A Real Disruptive Technology Since Decades

Buchmayr

2017

steel research int.

View full text Add to dashboard Cite

show abstract

“…The principal steps are hot metal desulfurization, BOF process, secondary metallurgy and continuous casting. The objectives of the steelmaking process are the adjustment of low contents of sulfur, hydrogen, nitrogen, total oxygen and in some cases also phosphorus 5,6 . The slabs have to be free of inner and outer defects, which means a minimum of center segregation and surface defects.…”

Section: Steelmakingmentioning

confidence: 99%

Recent developments and applications of TMCP steel plates

et al. 2011

View full text Add to dashboard Cite

“…8 been reviewed, each with different emphasis. 12,[17][18][19][20][21][22][23] Our purpose here it to focus on the development of anisotropy in pipeline steels, particularly with respect to the toughness of the steel as measured using Charpy impact tests. Such tests record the energy absorbed on impact by a standard specimen as a function of the test temperature.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Anisotropy in Steels for Pipelines

2013

View full text Add to dashboard Cite

There has been a huge expansion in the laying of pipelines for the transmission of fossil fuels over large distances and in dire environments. Large diameter pipes can be manufactured by welding spirals of hotrolled linepipe steels. This process has a cost advantage relative to one in which the steel is seam welded after bending into a tubular shape. However, one particular problem associated with the steels used to fabricate the pipes is that of the anisotropy of mechanical properties, especially the toughness. Even though properties such as the Charpy toughness and strength meet minimum specifications, the existence of orientation dependence can compromise, for example, the stability of the pipe to buckling. There is, therefore, a large international activity on understanding the anisotropy of pipeline steels. This review represents an attempt to critically assess the steels and the orientation dependence of their mechanical properties, with the aim of establishing a basis for further progress.

show abstract

New Steel Plates for the Oil and Gas Industry

Cited by 7 publications

References 1 publication

Thermomechanical Treatment of Steels - A Real Disruptive Technology Since Decades

Thermomechanical Treatment of Steels - A Real Disruptive Technology Since Decades

Recent developments and applications of TMCP steel plates

Mechanical Anisotropy in Steels for Pipelines

Contact Info

Product

Resources

About