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.


Toughness (Click Next at the end of each page)

The impact of impact toughness

Simplified Determination of Weldment Toughness

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

Significance and Use -

Welded-Notch Toughness Testing [download from]

Fracture Toughness of Stainless Steel Welds (Abstract)

Ductility and Toughness of Stainless Steel Welds (9 pages)

New Fluxes of Improved Weld Metal Toughness for HSLA Steels
(8 pages)

Microstructure and Impact Toughness of C-Mn Weld Metals (8 pages)

Toughness Properties of Friction Welds in Steels

Fracture Toughness of Electroslag Welded A537G Steel

Influence of Mn and Ni on the Microstructure and Toughness of C-Mn-Ni Weld Metals (1997)(14 pages)

Effect of welding on impact toughness of butt-joints in a titanium alloy (6 pages)

Tackling the toughness of steel pipes produced by high frequency induction welding and heat-treatment (Abstract)

Development of Fracture Toughness Requirements for Weld Metals in Seismic Applications (Abstract)

Effect of weld heat input on toughness and structure of HAZ of a new super-high strength steel

Improving 410NiMo weld metal toughness by PWHT (Abstract)

46 CFR 54.05-17 - Weld toughness test acceptance criteria

The effect of heat input on the weld metal toughness of surface welded joint

Fracture toughness estimation for pipeline girth welds

Riser girth weld toughness - an HAZ microstructure issue

Structural Significance of Local Brittle Zones in Pipeline Girth Welds

Effect of hydrogen and strain rate on superduplex stainless steel weld metal fracture toughness and fracture morphology

Effect of Heat Input on the Weld Metal Toughness of Chromium-Molybdenum Steel

Toughness Testing and ASME B31.3 Process Piping Code
(Commercial communication)

Effect of fracture path on the toughness of weld metal (Abstract)

The effect of vanadium on the microstructure and toughness of weld heat affected zones (7 pages)

The Effect of Vanadium and Niobium on the Properties and Microstructure [...] (10 pages)

Reduction of Toughness Results for Weld Metal 182 [...] (9 pages)

Load path effects on the fracture toughness of alloy 82h and 52 welds in low temperature water (12 pages)

Fracture Toughness Behavior of Weldments with Mis-Matched Properties at Elevated Temperature

Optimizing Weld Integrity for High-Strength Steels
(Presentation - 20 frames)

Position Paper - Pacific Gas & Electric Company’s Line 21E 12” Natural Gas Pipeline (15 pages)
Acceptance Criteria for Reported Cracks and Metal Loss

A critical view of the significance of HAZ toughness testing
(10 pages)

Fracture Toughness and Fatigue Crack Growth Study of Friction Stir Welded Plates

High Toughness High Hardness Iron Based PTAW Weld Materials
(15 pages)

Fracture Characteristics of Welds in Aluminum Alloys

Weld-hazs toughness and line head properties of tmcp steel

The effect of heat input on the Weld Metal Toughness of surface welded joint

Effects of weld strength undermatch on fracture toughness of HAZ notched weldments in a HSLA steel (Abstract)

Improvement of HAZ Toughness for High Heat Input Welding by Using Boron Diffusion from Weld Metal

Metallurgical Controlling Factors for Toughness of Multi-layered Weld Metal (5 pages)

Watch the Video

The Big Bang - The facts behind brittle fracture



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