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refining

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Image
Published: 30 August 2021
Fig. 37 Grain refining of A356 alloy by three master alloys. Source: Ref 27 More
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Published: 01 June 2019
Fig. 1 Fracture face of broken splined shaft from disc refiner of a newsprint mill More
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Published: 01 December 2019
Fig. 13 The finite element model with and without the refined meshings around the hole of casting process More
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Published: 01 January 2002
Fig. 83 Relationship between austenitization processing parameters and grain size for a grain-refined and non-grain-refined AISI 1060 steel. (a) Effect of austenitization temperature and 2 h soaking time. (b) Effect of austenitizing time. Source: Ref 30 More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001270
EISBN: 978-1-62708-215-0
... of different forgings were analyzed to determine whether there was a correlation between elements in the steel and the cracks found on the parting lines. Correlation of chemistry and cracking indicated a greater chance for formation of cracks if the steel was vanadium grain refined and if the vanadium content...
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
... Abstract A case of continual product refinement stimulated by product failures was described. Brittle fracture of gas transmission line pipe steels occurred demonstrating a poor combination of materials, environment, manufacturing and installation problems, and loads. Initial efforts were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001619
EISBN: 978-1-62708-225-9
... Abstract A splined shaft on a wood chip-to-fiber refiner failed during equipment start-up. The shaft broke into two pieces at a location close to the end of the splined part of the shaft. The failed component showed the classical fatigue-cracking fracture face. The shaft had a diam...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001571
EISBN: 978-1-62708-229-7
... on the quantification of changes in both the degree of carbide precipitation and delta ferrite content and shape in the cladding as a function of temperature and time to refine the estimates of the maximum temperatures experienced. Delta ferrite Hot cracking Nuclear power reactors Steel plate Weld cladding...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001269
EISBN: 978-1-62708-215-0
... network, which created a brittle path for fracture to occur longitudinally. As the cellular carbide network must be dispersed and refined during hot working of the original bar of material, the hobs were not salvageable. Minor factors contributing to the hob failures were premature wear resulting from...
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
... and intergranular carbides which contributed to cracking. It was recommended that stresses be reduced and /or that materials and components be changed. Refinements in welding procedures and implementation of preweld/postweld heat treatments were recommended also. Carbide precipitation Distortion...
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Published: 30 August 2021
Fig. 41 Axisymmetric finite-element analysis model of pressure swing adsorber vessel showing mesh refinement of critical welded regions More
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Published: 01 June 2019
Fig. 9 Microstructure of transverse section through a weld position. The light region shows evidence of grain refining but no melting and resolidification (90×, 2% nital) More
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Published: 30 August 2021
Fig. 36 Axisymmetric finite-element analysis model of molecular sieve vessel, including boundary conditions, applied loads, and top and bottom nozzle region mesh refinement More
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Published: 01 December 1993
Fig. 9 Section A. Microstructure at the tube ID at the coil ID showing a crack penetrating from the surface. Some oxide is visible on the surface which continues inside the crack. Compare refined microstructure at surface to Fig. 6 . 2% Nital etch More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047125
EISBN: 978-1-62708-217-4
...), major points of crack arrestment (1 to 5), and total crack length (between 5s). Arrow 6 indicates an undissolved grain refiner. Dimensions given in inches Investigation The portion of the hub that contained the crack was broken open to reveal the fracture surface. The area in which the crack...
Image
Published: 01 June 2019
in a test specimen, which resisted molten-zinc corrosion and which shows a refined microstructure. Etchant and magnification same as (a) More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0046911
EISBN: 978-1-62708-227-3
... metal arc process using E6010 welding rod and four passes on each side; the refined microstructure of this weld is shown in Fig. 1(b) . Chemical analyses of the welds indicated that the silicon content of the manual (shielded metal arc) weld was 0.54%, whereas that of the semiautomatic (submerged arc...
Image
Published: 01 June 2019
, a macrograph of the fracture surface, shows the origin of the fatigue crack (0), major points of crack arrestment (1 to 5), and total crack length (between 5s). Arrow 6 indicates an undissolved grain refiner. Dimensions given in inches More
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Published: 01 January 2002
(A) of the HAZ. Region B is a fine-grain reaustenitized area. Region C is a partly reaustenitized region of ferrite and refined pearlite. Region D is an unaffected region of ferrite and pearlite. Approximately 8×. (c) SEM fractograph showing inclusion platelets (arrow E) and dimples (arrow F). 1300× More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001037
EISBN: 978-1-62708-214-3
... enough to take the cementite into solution in the austenite. It was suspected that after slow cooling from the carburizing temperature, pins were heated slightly above the A e 1 prior to quenching and then given a low temper. The case was refined, and the core was unrefined. Conclusion...