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Weldments

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0091594
EISBN: 978-1-62708-228-0
... amine service if the temperature is expected to be above 95 deg C (200 deg F). Recommendations included inspecting all welds using shear wave ultrasonic testing and postweld heat treating all welds in lean amine service. Piping Refineries Sulfur recovery units Weldments Welded carbon steel...
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Published: 01 January 2002
Fig. 12 MIC of stainless steel weldments. (a) MIC showing a surface view of interdendritic attack at the fusion line of a stainless steel weldment. “A,” nondentritite; “D,” dendrite. (b) Cross section of MIC at a stainless steel weldment showing extensive corrosion of weld metal and fusion More
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Published: 01 January 2002
Fig. 29 Factors influencing porosity in weldments More
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Published: 01 January 2002
Fig. 32 Causes and remedies of slag inclusions in weldments More
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Published: 30 August 2021
Fig. 36 Factors influencing porosity in weldments More
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Published: 30 August 2021
Fig. 37 Factors influencing slag inclusions in weldments More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001514
EISBN: 978-1-62708-218-1
... of the injuries sustained by the driver. The faulty welds in the unit body were apparently a consequence of improper settings of parameters on a multihead electrical resistance spot welding machine. Lack of appreciation of the hazard associated with failure of this weldment may have contributed to the low...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001837
EISBN: 978-1-62708-241-9
.... Transverse face and capping face both were grinded up to 400 grit size and etched in 2% nital to reveal different regions of the weldment. Special care was taken to avoid excessive heating of required surface during grinding. Figure 6 shows the macrograph of the transverse face after etching. Note...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048767
EISBN: 978-1-62708-235-8
... the weldment may have been stress relieved as specified, stress-relief annealing was apparently incapable of reducing the high hardness of the localized bands caused by alloy mixing. Chemical analysis of the plating material showed it to be nickel, probably electroless nickel because it had a high hardness...
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Published: 01 January 2002
Fig. 26 Pulsed GMAW spot weld showing porosity in dissimilar metal weldment; a copper-nickel alloy to a carbon-manganese steel using an ERNiCu-7 (Monel 60) electrode. Etchant, 50% nitric-50% acetic acid. 4× More
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Published: 30 August 2021
Fig. 39 Reducer-elbow pipe weldment More
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Published: 01 December 1993
Fig. 2 Specimen taken from a failed tube weldment. Enlarged views of the outer and inner surfaces are shown. More
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Published: 01 December 1993
Fig. 3 Macroscopic view of a deep etched longitudinal section of the weldment. More
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Published: 01 December 1993
Fig. 5 Hardness profile across the weldment on the inner surface of the tank. (a) and on the outer surface (b) More
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Published: 01 December 1993
Fig. 8 Crack in the weldment More
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Published: 01 December 1993
Fig. 9 Crack starting from weldment and extending into base metal More
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Published: 01 June 2019
Fig. 8 The single weld nugget of the 66cm (26″) section of weldment cut from the rocker panel More
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Published: 01 June 2019
Fig. 10 Fuel tank anchor weldment partially separated at the fillet welds More
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Published: 01 June 2019
Fig. 1 Section through weld in a roadarm (a weldment of low-alloy steel castings). The roadarm fractured in the HAZ because of high carbon-equivalent content. Fracture surface is at arrow. 0.8× More
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Published: 01 June 2019
Fig. 3 Detail of shrinkage porosity in steel weldment. Note that the secondary dendrite arms are spaced at 90° in this cubic crystal structure material, unlike snowflakes formed from water, which prefer a hexagonal crystal habit. More