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spray quenching

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
... that occur during heat treating and describes the metallurgical sources of stress and distortion during heating and cooling. The article summarizes the effect of materials and the quench-process design on distortion and cracking and details the effect of cooling characteristics on residual stress...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001043
EISBN: 978-1-62708-214-3
.... The presence of thermal fatigue indications was evidence that improper atomization of the water spray had occurred. This resulted in alternate wetting and heating of the surfaces. Additionally, it appeared that a minor explosion had occurred in the inner shell quench sleeve from trapped gases. This could...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001455
EISBN: 978-1-62708-234-1
... alloy are mostly produced by extrusion. Some material processed this way has been prone to exfoliation corrosion. Extended aging for 24 h at a temperature of 185 deg C (365 deg F) virtually suppresses the tendency for exfoliation corrosion to develop. Also, the use of a sprayed coating, either...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
... break at edges of press-fitted or shrink-fitted members, where high degrees of stress concentration exist. Such stress concentration effectively reduces fatigue resistance, especially when coupled with fretting. Metallurgical stress raisers may be quench cracks, corrosion pits, gross nonmetallic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001259
EISBN: 978-1-62708-233-4
...Abstract Abstract A bolt manufacturer observed that products made from certain shipments of steel 41 Cr4 wire were prone to the formation of quench cracks in their rolled threads. The affected wire was tested and found to be highly sensitive to overheating because of the metallurgical method...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
... Section of a forged steel crankshaft showing beneficial grain flow around the geometrical features Fig. 38 Crankpin of a crankshaft that fractured in fatigue after the crankpin journals and main-bearing journals were rebuilt by metal spraying. (a) Fracture surface showing fracture origin (arrow...
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
... hardening and cracking in the heat affected zone. On reflection it will be apparent that the abstraction of heat from the welded zone by the cold mass of the shaft is equivalent to a rapid quench. in welding these materials, therefore, due consideration must be given to pre-heat temperatures, electrode...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0089617
EISBN: 978-1-62708-232-7
... sticking to the bore surface. Recommendations included reducing the pouring temperatures of the molten metal and spraying a thicker insulating coating onto the mold surface. Centrifugal casting Foundry practice Molds Overheating 4130 UNS G41300 Casting-related failures The forged 4130...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... revealed only slight deformation at the raceway corners ( Figs. 5 , 6 ). The core microstructure exhibited a quenched and tempered martensitic structure with carbides homogenously dispersed throughout the cross-section. Although the bony or branchlike carbide morphology is not desirable [ 2 – 4 ], further...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001814
EISBN: 978-1-62708-241-9
... an abnormal temperature, but this probe was located in the outlet downstream of a water spray, which may have masked any change in operating condition. The data from the other probe showed that the quench chamber temperature had exceeded its normal operating temperature of about 230 °C during the day...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... scattered from the fracture features; glare is reduced, and image contrast is improved. Fig. 1 Illustration of a cleavage fracture in a quenched and tempered low-carbon steel examined using three direct methods and three replication methods. (a) LM cross section (nickel plated). Etched with Vilella's...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006828
EISBN: 978-1-62708-329-4
... of Waspaloy Spray-Manifold Assembly because of Embrittlement by Penetration of Molten Braze Metal Example 5: Liquid Metal Induced Embrittlement in Fuel Line Braze Joints Example 6: <bold>Braze Weld Failure due to Intermetallic Compound Formation</bold> As previously stated, brazed joints are formed...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006816
EISBN: 978-1-62708-329-4
... and material factors that cause a part to fail during heat treatment. The article discusses the problems associated with heating and furnaces, quenching media, quenching stresses, hardenability, tempering, carburizing, carbonitriding, and nitriding as well as potential stainless steel problems and problems...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
... Coatings Plasma Sprayed on a Steel Roller , Tribol. Int. , Vol 73 , 2014 , p 47 – 56 10.1016/j.triboint.2013.12.019 176. Ahmed R. , Ali O. , Faisal N.H. , Al-Anazi N.M. , Al-Mutairi S. , Toma F.-L. , Berger L.-M. , Potthoff A. , and Goosen M.F.A...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
..., chemical vapor deposition, and thermal spraying (TS). It provides a background to RCF in bearing steels in order to develop an understanding of failure modes in overlay coatings. The article describes the underpinning failure mechanisms of TiN and diamond-like carbon coatings. It presents an insight...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... flow of coolant, with an additive for corrosion protection and lubrication, should be directed uniformly into the cut. Wet cutting produces a smooth surface finish and, most importantly, guards against excessive surface damage caused by overheating. Figure 1 shows the surface of quenched and tempered...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001592
EISBN: 978-1-62708-228-0
..., a strengthened microstructure of steel (quenched and tempered) is recommended along with a suitable chemical protection. The selection of the chemical inhibition program is completed following NACE Recommendation MR-0174. 2 2.1.1 Observation 2.1.2 Microscopy Two of the major factors contributing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001584
EISBN: 978-1-62708-236-5
... of the neutralizer. Layers of various titanium oxides were observed on titanium sparger surfaces. Below the oxide layers, there was a well-developed heat-affected zone (HAZ). The oxide layers, quench cracks in the oxide, and observed microstructure in the HAZ, including lack of alpha grain growth in the parent metal...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
...: Ref 1 Aluminum generally has a weak cavitation erosion resistance compared with steels. This resistance can be considerably improved, however, by aging and alloying ( Fig. 16 ). Fig. 16 Erosion rate of aluminum treated in different conditions (AQ: as-quenched; OA: over-aged; PH: peak...