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heat affected zone

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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001028
EISBN: 978-1-62708-214-3
... beam was used. Metallography The radial metallographic section obtained through the outer portion of the upper sheet, showed a fully austenitic structure adjacent to the crack, with no evidence of melting or heat-affected zone along the crack boundary ( Fig. 19 ). This indicates...
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Published: 01 January 2002
Fig. 36 Intergranular corrosion of the inside surface heat-affected zone of E-Brite stainless steel adjacent to the weld fusion line. Electrolytically etched with 10% oxalic acid. 100× More
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Published: 01 June 2019
Fig. 2 Normal microstructure of the heat-affected zone in the AISI 304L stainless steel tank (etched with oxalic acid solution, 500×). More
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Published: 01 June 2019
Fig. 3 Intergranular corrosion of the inside surface heat-affected zone of E-Brite stainless steel adjacent to the weld fusion line. Electrolytically etched with 10% oxalic acid. 100× More
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Published: 01 June 2019
Fig. 2 Micrograph illustrates a heat-affected zone (HAZ) crack, (arrow) at the toe of the weld of Fig. 1 . Fracture edge is at top of photo. 2 pct Nital etch; magnification about 44 times. More
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Published: 01 June 2019
Fig. 4 At the junction of the heat affected zone and weld metal, the light structure is typical of cast chromium-nickel alloy, and the dark HAZ is martensitic. (See Fig. 3 ) Vilella's etch; magnification 100 times. More
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Published: 01 June 2019
Fig. 4 Weld between bulkhead and hull plate showing crack in heat-affected zone. More
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Published: 01 June 2019
Fig. 5 Skewed T-joint showing crack in heat-affected zone. More
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Published: 01 June 2019
Fig. 6 Skewed T-joint showing crack in heat-affected zone and corrosion. More
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Published: 01 June 2019
Fig. 7 Cracking in heat-affected zone. More
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Published: 01 June 2019
Fig. 5 Heat affected zone of seam weld after brush cleaning (original magnification was 8×) More
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Published: 01 June 2019
Fig. 8 Microstructure of heat affected zone. Left martensite (black) with ledeburite eutectic, right recrystallised structure. Etched (FeCl 3 + HCl + ethanol). 100 × More
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Published: 01 June 2019
Fig. 9 Microstructure on the inner side of the flange in the heat affected zone; left austenite with ledeburite, right austenite with localised melting. Etched (FeCl 3 + HCl + ethanol). 100 × More
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Published: 01 June 2019
Fig. 10 Crack path on the inner surface of the flange in the heat-affected zone. Etched (FeCl 3 + HCl + ethanol). 100 × More
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Published: 01 June 2019
Fig. 11 Crack path in the heat affected zone. The crack runs partly through the ledeburite eutectic and partly through the martensite grains. Etched (FeCl 3 + HCl + ethanol). 100 × More
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Published: 01 June 2019
Fig. 8 Photomicrographs of the outer edge of the heat-affected zone of the weld taken from (A) the discolored test plate and (B) surface replica of the cylinder weldment. More
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Published: 30 August 2021
Fig. 34 Microstructure of weld and heat-affected zone on longitudinal weld sample No. 2. Etched in 5% nital. Original magnification: 150× More
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Published: 30 August 2021
Fig. 35 Microstructure of heat-affected zone on longitudinal weld sample No. 2 showing nodular graphite. Etched in 5% nital. Original magnification: 80× More
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Published: 30 August 2021
Fig. 36 Microstructure of heat-affected zone on longitudinal weld sample No. 2 showing spheroid graphitization. Etched in 5% nital. Original magnification: 80× More
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Published: 30 August 2021
Fig. 37 Microstructure of heat-affected zone and base metal on longitudinal weld sample No. 2 showing spheroid graphitization. Etched in 5% nital. Original magnification: 80× More