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materials verification

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001757
EISBN: 978-1-62708-241-9
... that was corrected, and stall condition did not repeat on the ground. The engine was then released back into service. Experimental Procedure Macroscopic inspection, material verification, microscopic examination, and metallographic analysis were included in the failure analysis [ 6 ]. And for these procedures...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006927
EISBN: 978-1-62708-395-9
... general design rules for the plastic forming processes covered. It also discusses the steps involved in design validation and verification. plastic design plastic forming tooling DESIGN of a plastic part needing to be formed must consider the material, the process, and the tooling...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001262
EISBN: 978-1-62708-224-2
... after three or four months' service. It was reportedly manufactured of the heat resistant steel 30 CrMoV 9 (Material No. 1.7707). Verification of the chemical composition yielded the following values: C % Si % Mn % P % S % Cr % Mo % V % 0,32 0,18 0,60 0,022 0,013 2,34 0,01...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001905
EISBN: 978-1-62708-217-4
... and a companion, intact retaining band to ARL for inspection and analysis. Chemical analysis, dimensional verification, hardness testing, metallography, and tensile testing were performed to determine the cause for premature failure. The chemical composition of the components was compatible with the nominal...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003558
EISBN: 978-1-62708-180-1
... relative to it. Wear is progressive in that it increases with usage or increasing amounts of motion, and it ultimately results in the loss of material from a surface or the transfer of material between surfaces. Wear failures occur because of the sensitivity of a material or system to the surface changes...
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
... 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 in the system...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001910
EISBN: 978-1-62708-217-4
... analyses were conducted on the individual components: visual examination, surface finish, dimensional verification, magnetic particle inspection, metallography, chemical analysis, microhardness testing, macrohardness testing, coating thickness (where applicable), decarburization measurement (where...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006868
EISBN: 978-1-62708-395-9
... Abstract This article presents the benefits of selecting plastics for products to be manufactured. It discusses the four key considerations for plastic part design: material, process, tooling, and design. The article provides a detailed discussion of the development sequence for plastic parts...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001575
EISBN: 978-1-62708-217-4
... has plastically deformed to “copy” shaft's shape. Review of the manufacturing operations evidenced that no verification of correct interference was recorded at assembling of bushings into the spacers. Review of base materials properties showed that: - bushing material max. operating...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006912
EISBN: 978-1-62708-395-9
... Abstract Plastic product failures are directly attributed to one of the following four reasons: omission of a critical performance requirement, improper materials specification, design error, and processing/manufacturing error. Therefore, product failures can be minimized or eliminated if all...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001809
EISBN: 978-1-62708-241-9
... of selective grain attack than in the bulk material (~8%) ( Fig. 6 ). Fig. 1 ( a ) Severe damage on suction side caused ( b ) multiple perforations of the vanes Fig. 2 ( a ) Opposite suction side of impeller showed less damage but it still contained a ( b ) perforated vane ICP chemical...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001120
EISBN: 978-1-62708-214-3
... a die for die casting of aluminum was submitted for metallurgical analysis. The designated material was premium-quality H13 tool steel. The heat treatment and expected hardness were not specified. The die reportedly fractured after 700 shots in service. The broken segment was submitted to a laboratory...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... or assembly is subject to damage that prevents its continued functioning, those involved often want to know whether the correct material was used to manufacture the subject items. There is a long history of use of verification of composition as “acquittal” of a component that has stopped functioning...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... fracture-surface information of the material is critical in the evaluation of the many aspects of the failure analysis, such as comparison to the design specification, verification of heat treatment condition, comparison to the service loads, determination of failure mechanism, and so on. Unfortunately...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0091092
EISBN: 978-1-62708-224-2
... that installation had been 1 to 2 years prior to the failure. The shaft material was verified as tempered 4150 steel by using wet chemical analysis and metallographic techniques. The hardness and the microstructure were surveyed by preparing metallographic specimens from the fractured hub section...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001600
EISBN: 978-1-62708-217-4
... a comprehensive investigation in order to identify the cause of decreased fatigue life within the IT parts, including dimensional verification, visual examination, chemical analysis, surface roughness, hardness, conductivity, metallography, tensile and fatigue testing, fractography, shot peening analysis...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001791
EISBN: 978-1-62708-241-9
... Abstract A pipe in the lateral wall of a boiler powering an aircraft carrier flat-top boat failed during a test at sea. The pipe was made from ASTM 192 steel, an adequate material for the application. Microstructural analysis along with equipment operating records provided valuable insight...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
..., design deficiencies, material defects, manufacturing/installation defects, and service life anomalies, with examples. The article describes several common charting methods that may be useful in performing an RCA. It also discusses other failure analysis tools, including review of all sources of input...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006756
EISBN: 978-1-62708-295-2
... is a valid method to apply in other systems. Identification of potential damage mechanisms, acquisition of detailed information regarding material features and damage mechanisms, root-cause verification, and corrective actions help prevent or minimize the scope of future failures. Another classification...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001648
EISBN: 978-1-62708-234-1
... ). 1 , 2 Laboratory Examination Verification of Chemical Composition The results of the chemical analysis are presented in Table 1 . The coupling material was specified as type 416 stainless steel, and the analysis results verified this composition. 3 Type 416 is a heat treatable, free...