Bulletin_86

Weld Toughness


The purpose of this Bulletin_86 is to provide links to Online Sources.

Toughness is the ability of the weldment to absorb energy in the plastic range.

It is one of the material properties studied by Mechanical Metallurgy.

This is the field of metallurgy dealing with the response of metals to external forces.

In particular, in many engineering applications, it is essential that weldments be capable to sustain impact loads without fracturing.

This capacity is assured by constructions exhibiting adequately high fracture toughness.

The subjects relevant to this property are studied with suitable tests and the results are explained and exposed in books and research papers listed hereafter.

The Online Resources listed in this Bulletin_86 offer a wide range of publications presenting essential knowledge on the above matters.

Mid June Bulletin


15 June 2013 -  Weld Toughness - Bulletin_86


PWL#118B - Bulletin_86: Resources on Weld Toughness, Impact, Determination of notch toughness, Ductility and Toughness, HAZ Microstructure, Influence of Mn and Ni, Improvement by PWHT, acceptance criteria, the effect of heat input, fracture path, Effects of weld strength undermatch, controlling factors and much more...


The references published in this Bulletin_86 are selected to provide useful knowledge to our readers.

Some of the sources are commercial companies, presenting their services or goods together with technical advice.

No endorsement or recommendations of such offers is intended.

Readers should check if such information meets their purposes and needs.

The addresses reported hereafter in this Bulletin_86 were live and correct at the time of their publication.

There is no guarantee that they will always be so, because they are administered by the sources themselves and are under their control.

Note: References to articles or other documents are given here in one of two forms.

If the links are "live" (usually underlined or otherwise highlighted) they are operated with a click of the mouse.

If they are URL's (Uniform Resource Locator), which is the analogue of an address, they begin with "http://..." or "www.".

These are not live and must be copied and pasted entirely into the browser (after having selected them with the mouse or otherwise).

If they are long they may be displayed in two or more lines.

In that case one has to care that the URL be copied completely in a single line without any space, and Enter.

If the information is important to you, you may save the downloaded selected pages in a suitable folder on your Computer for easy reference.

You are welcome to forward this Bulletin_86 Resources page to those of your friends who may profit of this information.

Resources

Toughness (Click Next at the end of each page)
http://www.ndt-ed.org/EducationResources/CommunityCollege/Materials/Mechanical/NotchToughness.htm

The impact of impact toughness
http://www.thefabricator.com/article/consumables/the-impact-of-impact-toughness

Simplified Determination of Weldment Toughness
http://rns.trb.org/dproject.asp?n=34135

ASTM E2818 - 11
Standard Practice for Determination of Quasistatic Fracture Toughness of Welds

Significance and Use -
http://www.astm.org/Standards/E2818.htm

Welded-Notch Toughness Testing [download from]
http://www.asminternational.org/portal/site/www/AsmStore/ProductDetails/?vgnextoid=cd7f29e36c228110VgnVCM100000701e010aRCRD

Fracture Toughness of Stainless Steel Welds (Abstract)
http://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP33082S.htm

Ductility and Toughness of Stainless Steel Welds (9 pages)
http%3a//www.aws.org/wj/supplement/WJ_1976_02_s33.pdf

New Fluxes of Improved Weld Metal Toughness for HSLA Steels
(8 pages)
www.aws.org/wj/supplement/WJ_1982_12_s373.pdf

Microstructure and Impact Toughness of C-Mn Weld Metals (8 pages)
http://www.aws.org/wj/supplement/WJ_1990_12_s454.pdf

Toughness Properties of Friction Welds in Steels
http://www.aws.org/wj/supplement/WJ_1986_08_s193.pdf

Fracture Toughness of Electroslag Welded A537G Steel
http://www.americanweldingsociety.org/wj/supplement/WJ_1976_01_s1.pdf

Influence of Mn and Ni on the Microstructure and Toughness of C-Mn-Ni Weld Metals (1997)(14 pages)
http://aws.perusion.com/wj/supplement/WJ_1997_05_s183.pdf

Effect of welding on impact toughness of butt-joints in a titanium alloy (6 pages)
www3.ntu.edu.sg/home/mwzhou/Papers/2003%20-%20Impact%20Toughness%20of%20Ti%20Joints.pdf

Tackling the toughness of steel pipes produced by high frequency induction welding and heat-treatment (Abstract)
http://www.sciencedirect.com/science/article/pii/S0921509311008136

Development of Fracture Toughness Requirements for Weld Metals in Seismic Applications (Abstract)
http://cedb.asce.org/cgi/WWWdisplay.cgi?130598

Effect of weld heat input on toughness and structure of HAZ of a new super-high strength steel
http://www.ias.ac.in/matersci/bmsapr2003/301.pdf

Improving 410NiMo weld metal toughness by PWHT (Abstract)
http://www.sciencedirect.com/science/article/pii/S0924013611001944

46 CFR 54.05-17 - Weld toughness test acceptance criteria
http://www.law.cornell.edu/cfr/text/46/54.05-15

The effect of heat input on the weld metal toughness of surface welded joint
http://www.tmt.unze.ba/zbornik/TMT2010/016-TMT10-227.pdf

Fracture toughness estimation for pipeline girth welds
http://www.twi.co.uk/technical-knowledge/published-papers/fracture-toughness-estimation-for-pipeline-girth-welds-september-2002/

Riser girth weld toughness - an HAZ microstructure issue
http://www.twi.co.uk/news-events/bulletin/archive/2004/may-june/riser-girth-weld-toughness-an-haz-microstructure-issue/

Structural Significance of Local Brittle Zones in Pipeline Girth Welds
http://www.twi.co.uk/EasySiteWeb/GatewayLink.aspx?alId=1325025

Effect of hydrogen and strain rate on superduplex stainless steel weld metal fracture toughness and fracture morphology
http://www.twi.co.uk/technical-knowledge/published-papers/effect-of-hydrogen-and-strain-rate-on-superduplex/

Effect of Heat Input on the Weld Metal Toughness of Chromium-Molybdenum Steel
http://www.waset.org/journals/waset/v73/v73-190.pdf

Toughness Testing and ASME B31.3 Process Piping Code
(Commercial communication)
http://www.mtm-inc.com/reduce_project_risk/toughness_testing_and_asme_b313_process_piping_code/

Effect of fracture path on the toughness of weld metal (Abstract)
http://link.springer.com/article/10.1023/A%3A1016368019571

The effect of vanadium on the microstructure and toughness of weld heat affected zones (7 pages)
www.hsla-v.org/assets/ocuments/Effects_Microstructure.pdf

The Effect of Vanadium and Niobium on the Properties and Microstructure [...] (10 pages)
http://vanitec.org/wp-content/uploads/2011/09/The-Effect-of-Vanadium-and-Niobium-on-the-Properties-and-Microstructure-of-the-Intercritically-Reheated-Coarse-Grained-Heat-Affected-Zone-in-Low-Carbon-Microalloyed-Steels.pdf

Reduction of Toughness Results for Weld Metal 182 [...] (9 pages)
http://iweb.tms.org/NM/environdegXII/0613.pdf

Load path effects on the fracture toughness of alloy 82h and 52 welds in low temperature water (12 pages)
iweb.tms.org/NM/environdegXII/0601.pdf

Fracture Toughness Behavior of Weldments with Mis-Matched Properties at Elevated Temperature
http://www.tms.org/students/winners/cretegny/cretegny.html

Optimizing Weld Integrity for High-Strength Steels
(Presentation - 20 frames)
http://www.boulder.nist.gov/div853/Weld_Join_Workshop_06/PROC/Files/6.5%20Keynote%20-%20Wang.pdf

Position Paper - Pacific Gas & Electric Company’s Line 21E 12” Natural Gas Pipeline (15 pages)
Acceptance Criteria for Reported Cracks and Metal Loss
http://www.cpuc.ca.gov/NR/rdonlyres/6A7BF8ED-5E29-463A-8253-070CA5FDDBE3/0/16to25AttachmentBL21EAcceptancePaperredacted.pdf

A critical view of the significance of HAZ toughness testing
(10 pages)
www.bergpipe.com/files/ep_tp63_04en.pdf

Fracture Toughness and Fatigue Crack Growth Study of Friction Stir Welded Plates
http://scialert.net/fulltext/?doi=jas.2012.2469.2473

High Toughness High Hardness Iron Based PTAW Weld Materials
(15 pages)
http://www.nanosteelco.com/images/uploads/resources/high_toughness_high_hardness.pdf

Fracture Characteristics of Welds in Aluminum Alloys
http://www.keytometals.com/Article127.htm

Weld-hazs toughness and line head properties of tmcp steel
http://trid.trb.org/view.aspx?id=395436

The effect of heat input on the Weld Metal Toughness of surface welded joint
www.tmt.unze.ba/zbornik/TMT2010/016-TMT10-227.pdf

Effects of weld strength undermatch on fracture toughness of HAZ notched weldments in a HSLA steel (Abstract)
http://link.springer.com/article/10.1023%2FA%3A1007411221854

Improvement of HAZ Toughness for High Heat Input Welding by Using Boron Diffusion from Weld Metal
http://www.china-weldnet.com/English/information/II-1565-05.htm

Metallurgical Controlling Factors for Toughness of Multi-layered Weld Metal (5 pages)
www.nssmc.com/en/tech/report/nsc/pdf/n9513.pdf

Watch the Video

The Big Bang - The facts behind brittle fracture

http://www.youtube.com/watch?v=ru8zXGoVRDk

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