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welding-induced heat-affected zone

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Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002404
EISBN: 978-1-62708-193-1
... orientation, strain rate, thermal aging, and neutron irradiation on base metal and weld toughness. It discusses the effect of cold-work-induced strengthening on fracture toughness. The article examines the fracture toughness behavior of aged base metal and welding-induced heat-affected zones. It concludes...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001432
EISBN: 978-1-62708-173-3
... Abstract This article discusses the susceptibility of carbon steels to hydrogen-induced cracking, solidification cracking, lamellar tearing, weld metal porosity, and heat-affected zone (HAZ) mechanical property variations. The composition and mechanical properties of selected carbon steels used...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001405
EISBN: 978-1-62708-173-3
... Abstract This article describes the common defects associated with arc welds in the weld metal and the heat-affected zone (HAZ) of the plate. These defects include porosity, incomplete fusion, hot cracks, lamellar tearing, undercut, rollover, and inclusions. The article details hydrogen-induced...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001342
EISBN: 978-1-62708-173-3
... Abstract This article discusses four types of defects in materials that have been fusion welded and that have been the focus of much attention because of the magnitude of their impact on product quality. These include hot cracks, heat-affected zone (HAZ) microfissures, cold cracks, and lamellar...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001034
EISBN: 978-1-62708-161-0
..., the weldment is generally divided into two main regions: the fusion zone, or weld metal, and the heat-affected zone (HAZ), as shown in Fig. 1 . Within the fusion zone, the peak temperature exceeds the melting point of the base metal, and the chemical composition of the weld metal will depend on the choice...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0005547
EISBN: 978-1-62708-161-0
...-weld heat treatment Ms temperature at which martensite grain-coarsened heat-affected q fatigue notch sensitivity zone starts to form from austenite on Q·BOP quick-quiet basic oxygen process ISCC intergranular stress-corrosion cooling r plastic strain ratio; radius cracking R stress (load) ratio; radius...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005613
EISBN: 978-1-62708-174-0
... in a weldment. It reviews the heat-affected and fusion zones of single-pass and multi-pass weldments. The article also includes a discussion on the welds in alloy systems, such as stainless steels and aluminum-base, nickel-base, and titanium-base alloys. aluminum-base alloys casting fusion zone heat...
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Published: 01 January 2005
of the two samples was known, the reason for the failure was clear. The cracked sample was cut from the heat-affected zone associated with the new flange. Residual stresses in this area were sufficiently high as to promote stress-corrosion cracking (SCC). The vessel was part of a food-processing line More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001471
EISBN: 978-1-62708-173-3
... zone and into solidified weld metal and includes five microstructurally distinct regions normally identified ( Ref 3 ) as the fusion zone, the unmixed region, the partially melted region, the heat-affected zone, and the base metal. This microstructural transition is illustrated in Fig. 1 . The unmixed...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005891
EISBN: 978-1-62708-167-2
... or heat-affected zone (HAZ), there is a significant longitudinal temperature gradient that results in axial heat flow due to heat conduction from the high-temperature region of the bar toward its cold area, manifesting itself as the heat sink phenomenon. This phenomenon is more pronounced when heating...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001429
EISBN: 978-1-62708-173-3
... of a thin-walled vessel, it is good practice to provide auxiliary cooling to the inside (process side) to minimize the extent of the HAZ. Welding Metallurgy Heat-Affected Zone The phenomenon of HAZ grain boundary sensitization is addressed in the article “Selection of Austenitic Stainless Steels...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001431
EISBN: 978-1-62708-173-3
... arc welding (GTAW) process. Simulated welding tests involve the application of heat through means other than welding, with or without loading. An example is Gleeble testing, in which a test specimen is resistance heated to simulate a weld heat-affected zone ( Ref 7 ). Excellent reviews of various...