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postweld heat treatment

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Published: 01 July 1997
Fig. 9 Effect of postweld heat treatment (PWHT) on the tensile properties of the heat-affected zone in a carbon-manganese grade steel, (a) Effect of multiple PWHT at 600 °C (1110 °F). (b) Effect of PWHT time at 600 °C (111 0 °F). (c) Effect of PWHT temperature. Source: Ref 14 More
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Published: 01 July 1997
Fig. 10 Effect of multiple postweld heat treatment (PWHT) cycles on the Charpy V-notch properties of the heat-affected zone in a carbon-manganese grade steel, (a) Weld 1; PWHT, 1 × 2h. (b) Weld 2; PWHT, 2 × 2h. (c) Weld 3; PWHT, 3 × 2h. Source: Ref 14 More
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Published: 01 July 1997
Fig. 11 Effect of postweld heat treatment (PWHT) time at 600 °C (111 0 °F) on the Charpy V-notch properties of the heat-affected zone in a carbon-manganese grade steel, (a) Weld 5; PWHT time, 1 h. (b) Weld 1; PWHT time, 2 h. (c) Weld 6; PWHT time, 4 h. Source: Ref 14 More
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Published: 01 July 1997
Fig. 12 Effect of postweld heat treatment (PWHT) temperature on the Charpy V-notch properties of the heat-affected zone in a carbon-manganese grade steel. (a) Weld 4, 550°C (1020 °F). (b) Weld 1, 600 °C (110°F). (c) Weld 7, 650°C (1200 °F). Source: Ref 14 More
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Published: 01 July 1997
Fig. 14 Effect of multiple postweld heat treatment (PWHT) cycles on the hardness of welds in a carbon-manganese grade steel, (a) Weld 1; PWHX 1 × 2h. (b) Weld 2; PWHT, 2 × 2h. (c) Weld 3; PWHX 3 × 2h. HAZ, heat-affected zone. Source: Ref 14 More
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Published: 01 July 1997
Fig. 15 Effect of postweld heat treatment (PWHT) time at 600 °C (1110 °F) on the hardness of welds in a carbon-manganese grade steel, (a) Weld 5, 1 h. (b) Weld 1, 2 h. (c) Weld 6, 4 h. HAZ, heat-affected zone. Source: Ref 14 More
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Published: 01 July 1997
Fig. 16 Effect of postweld heat treatment (PWHT) temperature on the hardness of welds in a carbon-manganese grade steel, (a) Weld 4,550 °C (1020 °F). (b) Weld 1; 600 °C (110 °F). (c) Weld 7,650 °C (1200 °F). HAZ, heat-affected zone. Source: Ref 14 More
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Published: 01 December 1989
Fig. 7.27. Effect of postweld heat treatment (5 h) and temperature on the tensile properties of a welded joint in 2¼Cr-1Mo steel prepared by shielded metal-arc welding (hydrogen pressure, 30 MPa (4350 psi); hold time, 360 h) ( Ref 65 ). More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930311
EISBN: 978-1-62708-359-1
... of welding phenomena that contribute to the overall understanding of titanium alloy welding metallurgy. These factors include alloy types, weldability, melting and solidification effects on weld microstructure, postweld heat treatment effects, structure/mechanical property/fracture relationships, and welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930329
EISBN: 978-1-62708-359-1
... alloys in terms of grain boundary precipitation, grain growth, and hot cracking in the heat-affected zone; fusion zone segregation and porosity; and postweld heat treatments. Next, the article analyzes the welding characteristics of dissimilar and clad materials. This is followed by sections summarizing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820013
EISBN: 978-1-62708-339-3
... and heat-affected zone (HAZ), solid-state phase transformations during welding, control of toughness in the HAZ, the effects of preheating and postweld heat treatment, and weld discontinuities. This chapter provides information on the classification of steels and the welding characteristics of each class...
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Published: 01 March 2002
Fig. 9.6 Minipatch welding tests on U-700 nickel-base superalloy showing the benefit of overaging on postweld heat treatment cracking, (left) solution heat treated, (right) overage heat treated More
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Published: 01 July 1997
Fig. 9 Effect of heating rate on the cracking tendency of solution-annealed (before welding) René 41 during postweld heat treatment. Source: Ref 15 More
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Published: 01 March 2002
Fig. 9.8 Effect of heating rate on the cracking tendency of Rene 41 nickel-base superalloy during postweld heat treatment after receiving preweld solution anneal More
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Published: 01 November 2007
Fig. 14.27 Reduction in area for 2.25Cr-1Mo and HCM2S at various postweld heat treatment (PWHT) temperatures with an initial applied tensile stress of 325 MPa (47 ksi). Source: Ref 22 More
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Published: 01 December 1989
Fig. 3.26. Effects of material composition (steel A had a lower impurity content than steel D) and simulated postweld heat treatment on creep-crack-growth behavior of 1¼Cr-½Mo steels ( Ref 149 ). More
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Published: 01 December 1989
Fig. 7.8. Ranges of FATT for base metal and synthetic HAZ material (peak temperature, 1350 °C, or 2460 °F) in various Cr-Mo steels before and after step cooling ( Ref 17 ). Postweld heat treatment: 1Cr-½Mo and 1¼Cr-½Mo, 20 h at 650 °(1200 °F); 2¼Cr-1Mo and 3Cr-1Mo, 20 h at 690 °C (1275 °F More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930179
EISBN: 978-1-62708-359-1
... and are the common choice for equipment and fabricated component assemblies, because of their weldability. Mild steels (up to 0.25% C) are readily weldable and, in cross sections of less than 50 mm (2 in.), usually do not require any preheat or postweld heat treatment. Hardened heat-affected zones (HAZ...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
..., there will also be a zone containing material that is tempered past its peak properties. Potential solutions are to: (a) slow down the cooling rate to avoid the formation of untempered martensite or (b) use a postweld heat treatment to temper any untempered martensite. 5.3.4 Sensitization of Stainless Steels...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930365
EISBN: 978-1-62708-359-1
... guide for arc welding carbon steels is given in Table A4 . Table A5 through A8 include recommended preheat and interpass temperatures for selected thicknesses of structural carbon steels, preheat and postweld heat treatment of steel pressure vessel and pipe welds, and recommended preheat...