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weldability

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0047611
EISBN: 978-1-62708-220-4
.... There was no evidence of crevice corrosion or any localized penetration of tubes that had sound welds. The leaking type 309S (Nb) welded tubes should be replaced with seamless tubes of type 304L stainless steel to minimize the areas requiring welding and to provide maximum weldability for the tube-sheet joints...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0091350
EISBN: 978-1-62708-227-3
... Abstract Cracks occurred in a new ship hull after only three months in service. It was noted that the 5xxx series of aluminum alloys are often selected for weldability and are generally very resistant to corrosion. However, if the material has prolonged exposure at slightly elevated...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001433
EISBN: 978-1-62708-235-8
... by the science and technology of welding. Where, however, full confidence is to be placed in the welded joint and its reliability must be beyond question, it is necessary to give adequate consideration to all the relevant factors, e.g., weldability of the base material, shape of the weld preparation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001430
EISBN: 978-1-62708-236-5
..., structures and components — has been revolutionised by the science and technology of welding. Where, however, full confidence is to be placed in the welded joint and its reliability must be beyond question, it is necessary to give adequate consideration to all the relevant factors, e.g., weldability...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048698
EISBN: 978-1-62708-228-0
... grain size was interpreted to have contributed. The piping material was changed from carbon steel to AISI type 316 stainless steel as it is readily weldable and resistant to corrosion by hydrogen sulfide. Pipe fittings Materials substitution Sulfurization Low-carbon steel Stress-corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001436
EISBN: 978-1-62708-235-8
... a microstructure typical of a medium-carbon steel (carbon approximately 0.4%) in the normalized condition, a material not weldable by ordinary methods. It was concluded that the post-welding crack arose primarily from the thermal contraction which developed in the weld metal on cooling. It is probable...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001432
EISBN: 978-1-62708-221-1
..., full confidence is to be placed in the welded joint and its reliability must be beyond question, it is necessary to give adequate consideration to all the relevant factors, e.g., weldability of the base material, shape of the weld preparation and the welding procedure which involves choice...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001431
EISBN: 978-1-62708-221-1
... be beyond question, it is necessary to give adequate consideration to all the relevant factors, e.g., weldability of the base material, shape of the weld preparation and the welding procedure which involves choice of the welding process, electrodes, size of runs, electrical parameters and pre- or post-heat...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001204
EISBN: 978-1-62708-219-8
... outside of the weld seam closely under the head. Neither one had been particularly deformed before fracture. The composition of the head pieces corresponded approximately to manganese steel (Material No. 1 0845), a weldable construction steel with increased yield point and strength, while the shafts were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047392
EISBN: 978-1-62708-221-1
... used to relate weldability to carbon content, indicate that preheating and postheating are mandatory. Conclusions Brittle fracture of the roadarm was caused by a combination of too high a carbon equivalent in the castings and the lack of preheating and postheating during the welding procedure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089793
EISBN: 978-1-62708-235-8
... was 0.19C-0.76Mn, giving carbon equivalents (CE) of 0.34 and 0.32, respectively (CE = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15); these CE levels are indications of good weldability and resistance to weld cracking. The welds were made with a preheat of 65 °C (150 °F), with the heat applied only...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001394
EISBN: 978-1-62708-234-1
...—a condition which could arise in a casting. An analogous effect also occurs during welding, hence the use of the term weld decay to describe corrosion of this form in fabricated articles. It is usual, in steels of weldable quality, to add titanium or niobium, the so-called “stabilising elements” which...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0065825
EISBN: 978-1-62708-228-0
... to still further enhancements permitting development of weldable higher-strength, larger-diameter pipe but with satisfactory fracture control. Overall, the changes in steel composition were relatively minor, at least on a total weight percent basis. However, these changes, chiefly in residual gas content...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001427
EISBN: 978-1-62708-236-5
... that the material was a plain carbon steel, the carbon content being of the order of 0 3%. Steel of this class is not normally weldable without pre-heating and subsequent slow cooling, measures which, if properly applied, will obviate the formation of hard zones. The crankshaft had a hardness of 170 VDP, which...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001328
EISBN: 978-1-62708-215-0
... residual stresses; changes in mechanical properties; and stress risers at weld defects and weld transitions. All of these factors contribute to accelerated deterioration and reduced repair weldability. How Failure Could Have Been Prevented It was recommended that the moment stresses be reduced...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001344
EISBN: 978-1-62708-215-0
... paper mill recovery boilers, stainless steel superheater banks are often installed because of their superior fireside corrosion resistance, excellent high-temperature strength, and relatively good weldability with chromium/molybdenum low-alloy steel tubing in the system. This particular tertiary...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001141
EISBN: 978-1-62708-227-3
... Worries Designers” , Engineering News Record, p. 53 , September 21 , 1972 . 17. “Steel Cracking Causes Design Change, Delays Job” , Ibid , p. 12 , January 29 , 1976 . 18. Vrbensky J. , “Some Weldability Problems in Thin MN-V-N Type Steel Plates from the Crackability Point...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001816
EISBN: 978-1-62708-241-9
... , ASM Handbook , Kuhn H. and Medlin D. , Ed., ASM International , 2000 , 412 – 424 . 10.31399/asm.hb.v08.a0003292 Introduction Experimental Procedure and Results Discussion Conclusions Commercial weldable HSLA steels microalloyed with Ti/Nb and obtained by ATMCRP...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001603
EISBN: 978-1-62708-228-0
... acquired for investigation. The chemical composition of the steel is compared with PI X-46 specifications in Table 1 . The carbon equivalent (CE) and cold cracking index (Pcm), the two indicators of weldability, were 0.30 and 0.20, respectively, indicating adequate resistance to cold and hot cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001675
EISBN: 978-1-62708-220-4
... repairs were required after ninety days of operation. Repairs were possible because of the specific location of thermal fatigue damage and the excellent weldability of Incoloy 800H, even after aging at 820 C. In the analysis of failure of tubing operating at high temperatures, the process of thermal...