Welcome to the 2008-2009 Technical Year:
Welcome to the website of the Northern Alberta Section of the American
Welding Society. Information will be updated as regularly as possible.
To contact any members of our executive, please follow the links along
the right-hand column.
If you or your organization would like to support us by becoming a patron member, please contact our chair, Matthew Yarmuch.
Fall Seminar - Welding Considerations for Corrosive Service (Oct. 17, 2008)
Credit card payment now available!
The fall seminar has become the AWS Northern Alberta Section's biggest, most popular event - this being our third full-day fall seminar. Because this is our main annual scholarship fundraising event, we hope to fill every seat again this year. Seats fill quickly so register soon!
WHEN:
- Friday, October 17, 2008
WHERE:
- Alberta Research Council Auditorium
250 Karl Clark Road, Edmonton, AB
PROGRAM:
- 7:30 am - Breakfast & Registration
- 8:45 am - Welcome & Introductions
- 9:00 am - Morning Presentations
- 11:30 am - Lunch Buffet
- 12:00 pm - Keynote Speaker (Gene Lawson, AWS President)
- 1:00 pm - Afternoon Presentations
- 3:30 pm - Closing Comments
- 4:00 pm - Seminar Adjourns
Cost:
- $245 for AWS, CWA, ASM, NACE, SME, and ASME Members
- $295 for Non-Members & Walk-Up Registrants
- $45 for Student AWS Members
- $85 for Student Non-Members
Registration:
Please RSVP prior to October 13th. Refer to attached PDF for registration information. Please send completed forms and payments to:
Megan Axley
Alberta Research Council, Advanced Materials
250 Karl Clark Road, Edmonton, AB, T6N 1E4
OR
E-mail megan.axley@arc.ab.ca or FAX to (780) 450-5477. Megan can also be reached via phone (780-450-5400). Credit card payment is now available!
Seminar Outline
The proper design and welding of construction materials intended
for corrosive service applications is a critical reliability aspect of
any operating facility. There are many factors to consider such as:
ensuring proper material and consumable selection, utilizing proper
welding parameters to negate material damage, and ensuring the
welders are fully trained for the specific corrosion resistant alloy.
The AWS Northern Alberta Section is hosting a one-day education
seminar that is designed to address these and other concerns.
Some of the industry’s top experts will be sharing their considerable
experience and knowledge regarding the required rigor for properly
selecting and welding materials intended for corrosive service. The
event will be of value for anyone involved in welding, including
shop foremen, superintendents, quality control personnel,
professional engineers, welding inspectors, welders, and students
of metals-related disciplines. The seminar topics and speakers are listed below:
Welding Considerations for Corrosive Service Applications
by Gary Coates, P.Eng., Nickel Institute
Stainless steels are most often used for corrosive service, with different grades being the most cost-effective for different services. Welding may affect their corrosion resistance and be the weak chain in the link. This paper will explore some of the different types of stainless and especially the super-austenitic and the various duplex grades, how they compare, what trends are occurring regarding grade selection, and how their corrosion resistance can be affected by welding.
The Fundamental Origin of Intergranular Stress Corrosion Cracking in Sensitized Stainless Steels
by Dr. Digby D. Macdonald, Pennsylvania State University
Intergranular Stress Corrosion Cracking (IGSCC) is a phenomenon that has exacted billions of dollars of damage, most notably in the nuclear power and petroleum industries. Under the action of a tensile stress, in a sufficiently corrosive environment, the chromium-denuded matrix adjacent to the grain boundaries corrodes, resulting in the intergranular penetration of a crack. IGSCC has been modeled in terms of the Coupled Environment Fracture Model (CEFM), which provides accurate predictions of the crack growth rate as a function of various environmental variables and crack properties, such as the applied stress intensity, corrosion potential (ECP), conductivity, flow velocity, and crack length. The application of the CEFM to predicting the accumulation of IGSCC damage in stainless steel components in the primary coolant circuits of Boiling Water (Nuclear) Reactors (BWRs) will be discussed.
KEYNOTE PRESENTATION - The Changing Welding Environment Creates Opportunities
by Gene Lawson, AWS President 2008
The Northern Alberta Section is honored to host the 2008 AWS President as our
seminar keynote speaker. As a veteran of the industry and AWS, Gene will
discuss the many challenges and opportunities for the ever changing welding
industry in the United States and Canada
Challenges Welding Duplex and Super Duplex Stainless Steels for Corrosive Service Applications
by William F. Newell, Jr., P.E., P.Eng., IWE, Euroweld Ltd.
Welding duplex and super duplex stainless steels is similar to welding austenitic stainless steels unless you must maximize both corrosion and mechanical properties. Where maximum results are necessary, such as in
corrosive service applications, selecting the proper base material and weld filler metal alone will not guarantee success. Attention to welding process, welder technique, bead shape, preheat/interpass temperatures, heat input on a per bead basis, and corrosion sample preparation are all essential to achieving satisfactory results. All of these factors will be discussed and their importance defined. Target parameters and approaches will also be presented to assist the user in obtaining successful results.
Developments in the Quality Manufacturing of GMAW, FCAW & MCAW Consumables
by Viwek Vaidya, P.Eng., Air Liquide
The presentation will cover the quality aspects of wire making of solid wires, flux cored and metal cored wires. Factors influencing the operational characteristics such as electrical pick up due to drawing soap and scratches on wire surface, cast and pitch, effect of slag system and metallurgical formulations affecting quality will be explored with examples. The development of FCAW and MCAW consumables will be discussed.
Welding Considerations for Sour Service - Focusing on NACE MR0175 and MR0103
by John Bringas, P.Eng., CASTI Publishing Inc.
The metallurgical changes that occur when welding carbon and low alloy steels affect their
susceptibility to SSC, HIC, SOHIC, SZC and other H2S related damage mechanisms. Welding
procedure qualification should not only be done in compliance with appropriate codes and standards
such as NACE MR0175, MR0103, ASME Section IX, etc., but should also include a thorough
engineering review to ensure they are suitable for their intended application in the specific sour
service environment. Qualification of welding procedures for sour service with hardness testing in
strict compliance to ASTM standards, as specified in NACE MR0175 and MR0103, will be discussed.
2007-2008 Dinner Meeting Schedule:
TBA
Gallery:
Event: May 17, 2007 - Fort Edmonton Park Forge Welding Demonstration
Event: October
19, 2007 - AWS Fall Seminar - Welding Procedure Development and
Qualification Requirements for Pressure Equipment and Pipelines
2007-2008 Executive Meeting Schedule (Tentative):
TBA
If you are interested in joining our executive, please contact
one of our executive members and come out! All meetings are held at the
Edmonton branch of the Alberta Research Council.
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