1-20 of 90 Search Results for

Heat distributing units

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001045
EISBN: 978-1-62708-214-3
...Abstract Abstract A failure analysis was conducted on brass alloy 270 heat exchanger tubes that were pulled from a unit used to cool oil for the speed regulators and thrust bearings of a hydroelectric power plant. The tubes began to leak after approximately 5.5 years of service...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001239
EISBN: 978-1-62708-232-7
... is based upon formation of tight oxide layers are not stable. Heat distributing units Heating coils Overheating 80Ni-20Cr High-temperature corrosion and oxidation A coil made of the nickel-chromium alloy NiCr 80 20 (Material No. 2.4869) with approx. 80 % Ni and 20% Cr had burnt...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001410
EISBN: 978-1-62708-220-4
.... The helical mode of the cracking was probably due to the torsional stresses which would be imposed on the elbow by thermally induced movements of the coil in service. Dezincification Heat distributing units Steam Stresses Torsion 60Cu-40Zn 70Cu-30Zn 80Cu-20Zn Dealloying/selective leaching...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001403
EISBN: 978-1-62708-220-4
... distributing units Heating coils Vessels 18Cr-8Ni-3Mo Stress-corrosion cracking Transgranular fracture This case study concerns a process vessel heating coil, which was fabricated from 3 in. O.D. × 12 s.w.g. austenitic stainless steel. The coil consisted of several 3 ft. diameter turns...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001390
EISBN: 978-1-62708-215-0
... not been carried out as specified. It was recommended that the sheathing material be fully annealed and that the outer surface be pickled and passivated. Electric heating elements Heat-distributing units Marine atmospheres Nuclear reactor components Sheaths 304L UNS S30403 Stress-corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001813
EISBN: 978-1-62708-241-9
... on the graphitization of steel . In: The Annual Meeting of The American Society of Mechanical Engineers , Nov. 1953 5. Baranov A.A. : Effect of plastic strain on graphitization of steel . Met. Sci. Heat Treat. 3 , 17 – 18 ( 1961 ) 10.1007/BF00815235 6. Neri M.A. , Colás R...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001774
EISBN: 978-1-62708-241-9
.... Tawancy H.M. , Failure of hydrocracker heat exchanger tubes in an oil refinery by polythionic acid-stress corrosion cracking . Eng. Fail. Anal. 16 , 2091 – 2097 ( 2009 ) 10.1016/j.engfailanal.2009.02.002 5. ASM . Failure Analysis and Prevention . Metals Handbook , vol. 10 , 8th edn...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001590
EISBN: 978-1-62708-228-0
... to the outlet header. The location is indicated on Fig. 1 . Fig. 3 Skid-mounted hydrogen production units, Belgium The crack was in the heat-affected zone of the weld and had developed parallel to the weld (along the fusion line). The crack appeared to be brittle. A micrograph of the crack ( Fig...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... and cool oil makes it possible to load gear surfaces to stresses approaching the critical limit of the gear metal without failure of the lubricating film. The maximum load that can be carried by gear teeth also depends on the velocity of sliding between the surfaces, because the heat generated varies...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001647
EISBN: 978-1-62708-235-8
... containers and were also intended to identify any gas contaminant or pressure transient that might lead to porosity. Two welds were made with increased heat input, accomplished through placing a second closure weld on top of the first weld, to maximize the likelihood of detecting any contaminant released...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001312
EISBN: 978-1-62708-215-0
... was attributed to insufficient component thickness, which made the dashpot unable to withstand internal operating pressure, and to extensive annealing in the heat-affected zones of the brazed joints. It was recommended that the condenser dashpot design take into account the annealing effects of brazing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001268
EISBN: 978-1-62708-215-0
... be accomplished by screening leafs representing all of the heat treat lots, using a testing, if deemed feasible, to identify defective portable hardness testing unit and/or conductivity material. The detent spring assembly is comprised of nine spring leafs, as shown in Fig. 1 . The detent spring assembly...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001792
EISBN: 978-1-62708-241-9
... that the gearbox shaft was made of low alloy SAE 4340 [ 4 ] which is considered to have excellent notch toughness, which is in anomaly compared with other high strength steels. Tempered martensitic microstructure (see Fig. 3a ) revealed by metallography on gearbox shaft materials suggests that the shaft was heat...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... and columnar, in the tip shroud of some buckets This type of formation and distribution of the grains resulted from the blade casting process. Due to the thinness of the shroud and its relatively large surface, the extraction of heat (direction of heat flow, temperature gradient, and the rate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001003
EISBN: 978-1-62708-227-3
..., and if the heat flux through the tube wall is sufficient, it causes boiling on the water side. One of the service failures is shown in Fig. 1 . The steam inlet flange is seen to the left and the exit flange to the right. This particular unit illustrates the two failure aspects observed in all the units...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... of the sample. The first heating run assesses the sample in the as-molded condition, while the second run evaluates the inherent properties of the material. The plotted results obtained during a DSC analysis are referred to as a thermogram. The thermogram shows the heat flow in energy units or energy per...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048840
EISBN: 978-1-62708-220-4
... records that the ring had been removed for hydrotest and welded without any postweld heat treatment. The final cause of failure was concluded to be cracking that developed during the installation of the new shroud ring. Stress-relief heat treatments were recommended to be performed to reduce residual...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001569
EISBN: 978-1-62708-229-7
... the corners. The hot side of the tubes would be expected to expand while the buckstay attachment weld on the cold side would act as a heat sink. This thermal difference would cause a tensile stress on the inside of the cold half of the tube which would concentrate at the buckstay attachment weld where thermal...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001790
EISBN: 978-1-62708-241-9
... Mechanical Testing and Evaluation Discussion Summary and Conclusions References References 1. Chandler H. : Heat Treater’s Guide: Practices and Procedures for Irons and Steels , 2nd ed. , ASM International , Materials Park, OH , 1995 10.1016/0304-3940(95)12173-0 . 2...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
.... Figure 12 shows the results of WDS analysis on a metallographically prepared section of a bolt with excessive phosphorus concentration in the near-surface material. Diffusion of excessive phosphorus into the steel during heat treatment led to brittle fracture of the bolt. Wavelength-dispersive...