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Foundry practice

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001490
EISBN: 978-1-62708-232-7
...Abstract Abstract A steel pot used as crucible in a magnesium alloy foundry developed a leak that resulted in a fire and caused extensive damage. Hypotheses as to the cause of the leak included a defect in the pot, overuse, overheating, and poor foundry practices. Scanning electron microscopy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0089696
EISBN: 978-1-62708-220-4
... that crosshead castings be properly inspected before machining. Revision of foundry practice to reduce or eliminate porosity was also recommended. ASTM A148 grade 105-85 (Medium-carbon steel casting) UNS D50800 Joining-related failures Casting-related failures Fatigue fracture Background Visual...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047297
EISBN: 978-1-62708-235-8
... with excessive ferrite. This anomalous structure is caused by shortcomings in the foundry practice of chemical composition, solidification, and inoculation control. Judging from the microstructure, the strength of the material was lower than desired for class 30 gray iron, and the suspected heat treatment...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001026
EISBN: 978-1-62708-214-3
... for defects before further processing and that foundry practices be reviewed to correct deficiencies leading to excessive hydrogen absorption during melting and casting. Castings Cleavage Martensitic stainless steels Military planes Supports Transgranular fracture Wings (aircraft) 17-4 PH UNS...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001089
EISBN: 978-1-62708-214-3
.... It was recommended that crosshead castings be properly inspected before machining. Revision of foundry practice to reduce or eliminate porosity was also recommended. Compressors Porosity Repair welding Welded joints Welding parameters ASTM A148 grade 105-85 UNS D50800 Joining-related failures Casting...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0089572
EISBN: 978-1-62708-218-1
... that were formed before the castings were heat treated. Recommendations included the following changes in processing: better gating and risering in the foundry to achieve sounder castings; better shakeout practice to avoid mechanical damage; better inspection to detect imperfections; and normalizing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001375
EISBN: 978-1-62708-215-0
... that the manufacturer work with the foundry to evaluate the criticality of core placement and to eliminate the undesired thin section. Foundry practice Sprinklers Valves Class 30 Casting-related failures Background Testing Procedure and Results Discussion Conclusion and Recommendations Selected...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089646
EISBN: 978-1-62708-235-8
... assisted the failure. Recommendations included establishing closer control of chemical composition and foundry casting practices to alleviate the carbon-flotation form of segregation. Additionally, some nonmetallurgical practices in journal-finishing techniques were suggested to ensure optimal surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001522
EISBN: 978-1-62708-235-8
... casting process. Foundry practice Gating and risering Housings Permanent mold castings Porosity A357 UNS A13570 Casting-related failures A concerted research effort undertaken to improve the strength properties of cast aluminum forward housing assemblies for guided munitions may improve...
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 Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
...-filling practice were the cause of the inclusions in part 2. Fig. 4 Close-up views of surface casting defects on a paper-drier head. (a) At the 12 o’clock position. (b) At the 9 o’clock position, with arrow indicating a surface defect. (c) At the 6 o’clock position. Original magnification of all...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... or imperfection is preferred when referring to deviations in less-than-perfect castings, the term casting defect is sometimes used for general imperfections as well. Unfavorable foundry practice can result in various casting imperfections that are detrimental in service and that may contribute to failure...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001082
EISBN: 978-1-62708-214-3
... Features Testing Procedure and Results Discussion Conclusion and Recommendations Acknowledgments References References 1. Klein J.L. , Repair Welding of Stainless Steel and Bronze Impellers: Theory and Practice , American Welding Society , Mar 1981 . 2. Metals Handbook...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... was a foundry containing several vibratory conveyors that moved parts from one area to another. Zoom plots were taken at each conveyor to determine their vibration frequencies. Exact matches were found between the frequencies present at the houses and several of the vibratory conveyors in the factory...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001753
EISBN: 978-1-62708-241-9
... , West Conshohocken, PA ( 2009 ). 10.1520/B0026_B0026M-09 , www.astm.org 2. Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes, B917/B917M, 2009 . ASTM International , West Conshohocken, PA ( 2009 ). 10.1520/B0917_B0917M-09 , www.astm.org 3. Hatch...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... Effects on Micro-Machinability of Multiphase Materials , Int. J. Adv. Manuf. Technol. , Vol 50 , 2010 , p 163 – 174 10.1007/s00170-009-2506-9 26. Jorstad J.L. and Rasmussen W.M. , Aluminum Casting Technology , 2nd ed. , Zalensas D. , Ed., American Foundry Society , Des...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
... the best possible results. When chemical analysis techniques and practices are applied correctly, substantial information can be obtained, such as: Verification that appropriate materials were used per the component design and material specifications Identification of harmful contaminants...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001834
EISBN: 978-1-62708-241-9
... Z.P. , Yao Y.H. , Shi C.Z. , Research on the microstructure of the oxidation film of T91 steel tube under the high temperature and high pressure water vapor . Foundry Technol . 26 ( 3 ), 202 – 204 ( 2005 ) 5. Tu S.-T. , Zhang H. , Zhou W.-W. , Corrosion failures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
.... This is followed by a section describing the methods based on scanning electron microscope fractography. The article also addresses procedures for three-dimensional fracture surface reconstruction. In each case, sufficient methodological details, governing equations, and practical examples are provided...