Aws mechanical testingmodule6c

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 11

Charpy TestCharpy Test

Prepare notched specimens (sets Prepare notched specimens (sets of 3)of 3)

Test each specimen set at a Test each specimen set at a specific temperaturespecific temperature

Impact sampleImpact sample Plot resultsPlot results

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Module 6 - Module 6 - 22

Charpy SpecimensCharpy Specimens

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 33

Typical Typical Charpy Charpy Testing Testing MachineMachine

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Module 6 - Module 6 - 44

Charpy Test ResultsCharpy Test Results

Energy absorption - Ft. lbs.Energy absorption - Ft. lbs. Percent shear - %Percent shear - % Lateral expansion - Mils Lateral expansion - Mils

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Module 6 - Module 6 - 55

Transition Transition Temperature Temperature

DeterminationDeterminationss

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Module 6 - Module 6 - 66Transition Temperature Transition Temperature SamplesSamples

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 77

Soundness TestingSoundness Testing

Bend testingBend testing Nick-breakNick-break Fillet breakFillet break

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Module 6 - Module 6 - 88Bend Test SamplesBend Test SamplesTransverse Weld Bend Transverse Weld Bend

SpecimensSpecimens

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Module 6 - Module 6 - 99Bend Test SamplesBend Test SamplesLongitudinal Weld Bend Longitudinal Weld Bend

SpecimensSpecimens

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Module 6 - Module 6 - 1010

Guided Bend Test JigGuided Bend Test Jig

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 1111

Wrap-Wrap-around around

Bend Test Bend Test JigJig

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Module 6 - Module 6 - 1212

Bend Test ProcedureBend Test Procedure

Prepare samplePrepare sample Orient in jigOrient in jig Bend sample (weld and HAZ in Bend sample (weld and HAZ in

bend)bend) Evaluate bend to CodeEvaluate bend to Code

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Module 6 - Module 6 - 1313

Nick Break TestNick Break Test

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Module 6 - Module 6 - 1414Evaluation of Nick-Break Evaluation of Nick-Break TestTest

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Module 6 - Module 6 - 1515

Fillet Break TestFillet Break Test

Prepare samplePrepare sample Break sampleBreak sample Evaluate fractureEvaluate fracture

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 1616Fillet Break - Sample Fillet Break - Sample FractureFracture

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Module 6 - Module 6 - 1717Fillet Break Specimen - T-Fillet Break Specimen - T-JointJoint

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Module 6 - Module 6 - 1818

Fatigue TestingFatigue Testing

Prepare samplesPrepare samples Test series of various loadsTest series of various loads Test to failure, record cyclesTest to failure, record cycles Test at maximum load vs no failureTest at maximum load vs no failure Plot dataPlot data Determine endurance limitDetermine endurance limit

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Module 6 - Module 6 - 1919

Chemical TestingChemical TestingDetermines Chemistry of MetalsDetermines Chemistry of Metals

SpectrographicSpectrographic Combustion (CO, COCombustion (CO, CO22

determination)determination) Wet chemistry (titration)Wet chemistry (titration) X-Ray fluorescence (XRF)X-Ray fluorescence (XRF)

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 2020

Corrosion TestingCorrosion Testing

““Evaluates metals in corrosive Evaluates metals in corrosive environments”environments”

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Module 6 - Module 6 - 2121

Metallographic TestingMetallographic Testing

Shows structure of metalShows structure of metal Macroscopic - less than 10XMacroscopic - less than 10X Microscopic - typically more than Microscopic - typically more than

100X100X

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 2222

PhotomacrographPhotomacrograph

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Module 6 - Module 6 - 2323

PhotomicrographPhotomicrograph

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 2424

Heat Treatment - 1 of 3 Heat Treatment - 1 of 3

Mechanical properties are often very Mechanical properties are often very dependent upon heat treat conditiondependent upon heat treat condition

Many types of heat treatmentMany types of heat treatment Determine heat treat condition prior to Determine heat treat condition prior to

welding on base metal or mech. testingwelding on base metal or mech. testing Consider effects of welding on heat Consider effects of welding on heat

treat condition and mechanical treat condition and mechanical propertiesproperties

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 2525

Heat Treatment - 2 of 3 Heat Treatment - 2 of 3

Heat Treatments For Steels:Heat Treatments For Steels: PreheatingPreheating Stress RelievingStress Relieving NormalizingNormalizing AnnealingAnnealing Quenching and TemperingQuenching and Tempering OthersOthers

AA m e r i c a nm e r i c a n WW e l d i n ge l d i n g S S o c i e t yo c i e t y

Module 6 - Module 6 - 2626

Heat Treatment - 3 of 3 Heat Treatment - 3 of 3 Heat Treatments For Stainless Steels:Heat Treatments For Stainless Steels: PreheatingPreheating Stress RelievingStress Relieving Solution Annealing, Water Quench Solution Annealing, Water Quench

(Solution Treatment)(Solution Treatment) Quenching and TemperingQuenching and Tempering OthersOthers

More on heat treating in Module 8More on heat treating in Module 8