Duplex World Virtual Conference abstracts

Please click on the button after the title of the presentation to view the author’s abstract.

June 1

Time: 13:00

MANUFACTURING DUPLEX STAINLESS STEEL

MEETING THE CHALLENGES OF PRODUCING DUPLEX STAINLESS STEELS

Moderator: Prof. Thomas Ladwein, Aalen University, Germany

Johann Peters, LAP GmbH

Production optimisation due to real-time information of profile and surface defects on rolling products.

Leilei Zhou, Baosteel

Cause analysis of strip breakage of 2205 duplex stainless steel during hot annealing and pickling.

Dr Shankar Venkataraman, Schmidt + Clemens

Heat resistant high alloy furnace rolls for the manufacture of duplex stainless steels.

Time: 14:30

PROCESSING FOR OPTIMAL PROPERTIES

Moderator: Dr Willem Van Haaften, Shell Global Solutions International

Munir Al-Saadi, Sandvik Materials Technology

The effects of reduction magnitude and different hot-working processes on the microstructure, mechanical properties and pitting corrosion resistance of SAN- MAC SAF 2205.

Sarata Cissé, Industeel R&D, France

Influence of thermal ageing on the mechanical and corrosion properties of the Super Duplex 1.4410 (UR™2507).

Pilar Esteban, Tubacex Group

Effect of different cooling methods and heat treatments on the toughness of thick wall extruded duplex stainless steel tubes.

Yong Joo Kim, Webco Industries

Hardness conversion of duplex and super duplex stainless steel between the Rockwell and Vickers scales.

Time: 16:00

FERRITE MEASUREMENTS: HISTORICAL TECHNIQUES WITH NEW POSSIBILITIES

Moderator: Jan Jonsson, Outokumpu

Sandra Le Manchet, Industeel – ArcelorMittal

Heat-affected zone ferrite content control of a new duplex stainless steel grade with enhanced weldability.

Jan Jonsson, Outokumpu.

Considerations for measuring ferrite content in duplex stainless steels with image analyses, IA.

June 2

Time: 12:30

WELDING & ADDITIVE MANUFACTURING WITH DUPLEX

WELDING DUPLEX STAINLESS STEELS

Moderator: Dr Iris Rommerskirchen, Eisenbau Krämer

Dr Lars Schemmann, Salzgitter Mannesmann Forschung GmbH

Appropriate welding approach of super duplex 25%Cr seamless pipes for subsea applications: Effect of alloying elements and modus operandi.

Jerome Bridel, Aperam

A parametric study on TIG weldability of cold-rolled Aperam DX2507 super duplex.

Kenta Yamada, Nippon Steel Corporation

Effect of welding parameters on microstructure of weldments of newly developed duplex stainless steel (UNS S82551).

Juliane Stützer, Otto-von- Guericke-Universität Magdeburg

Submerged arc welding of duplex stainless steels with additional cold wire – a comparison of different process variants.

Time: 14:00

ADDITIVE MANUFACTURING: BETTER THAN WROUGHT?

Moderator: Kasra Sotoudeh, TWI

A.D. Iams and T. A. Palmer, Pennsylvania State University

The formation and impact of oxygen-based inclusions in additively manufactured super duplex stainless steel.

Dr. Yogi Pardhi, Sulzer Pumps (UK) Ltd

Application of laser metal deposition for repair of super duplex stainless steel impeller.

James Shipley, Quintus Technologies

Microstructural & corrosion studies of super duplex produced via additive manufacturing.

Nikhil Dixit, Sandvik Manufacturing Solutions AB

Microstructure and mechanical properties of additively manufactured super duplex stainless steels.

Time: 15:00

WELDING & SPECIAL TREATMENTS, followed by DR DUPLEX Q&A

Moderators: Raymond Cordewener, Loïc Amadu & Rob Spelt

A discussion of duplex/ super duplex GTAW pipe welding.

June 3

Time: 12:30

DUPLEX APPLICATIONS

KEYNOTE PRESENTATION

Dr Thierry Cassagne, Corrosion and Metallurgy Expert, Exploration Production, TOTAL S.E. France

Past experience and future use of duplex stainless steels in upstream oil and gas; an operator’s view.

Time: 13:15

UNDERSTANDING THE LIMITS OF DUPLEX STAINLESS STEELS

Moderator: Mark van den Broek, Fluor

Mark van den Broek, Fluor

Specific material degradation mechanisms in petrochemical facilities relating to the use of duplexes. Examples of applications with issues (REACs, reboilers, vacuum condensers etc.), and reliable and economically successful applications of duplexes in the petrochemical industry.

Jan-Willem Rensman, Fluor, co-author John Houben, ExxonMobil

For heat exchangers in hydrogen and wet sour service, the problem area is the tube to tube-sheet weld. A best practice approach in designing and welding of tube to tube-sheet connections will be provided.

Time: 14:30

DUPLEX APPLICATIONS & SUCCESS STORIES

Moderator: Barinder Ghai, Sandvik Materials Technologies

Dr Shankar Venkataraman, Schmidt + Clemens GmbH + Co. KG

Success with lean duplex castings.

Enzo Panella, Gpi

Successfully executing on-site repairs; lifecycle costs of duplex vs other materials and lined tanks.

Angela Philipp, Sandvik Materials Technology Deutschland GmbH

Longer heat exchanger lifecycles with duplex stainless steels.

Steven Burrows,  Kingsbury UK

Successful, cost effective, vibration free machining of duplex fabrications.

Time: 16:00

KEYNOTE PRESENTATION

Frank Sukjun Yoon, International Stainless Steel Forum (ISSF) Market Development Committee Fellow

Market opportunities for duplex stainless steels in applications presently dominated by other materials.