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Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001335
EISBN: 978-1-62708-215-0
... of an as-drawn 90-10 cupronickel tube during mechanical working were investigated to determine the source of embrittlement. Embrittlement was sporadic, but when present was typically noted after the first process anneal. Microstructural and chemical analyses were performed on an embrittled section...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001532
EISBN: 978-1-62708-232-7
... Abstract Work rolls made of indefinite chill double-poured (ICDP) iron are commonly used in the finishing trains of hot-strip mills (HSMs). In actual service, spalling, apart from other surface degeneration modes, constitutes a major mechanism of premature roll failures. Although spalling can...
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
.../0308-0161(74)90001-5 3. Cornish J.B. and Scott J.E. , Fracture Study of Gas Transmission Line Pipe , Mechanical Working & Steel Processing Conf. , Vol VII , American Institute of Mining, Metallurgical, and Petroleum Engineers , 1969 , p 222 – 239 4. Kiefner J.F...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001535
EISBN: 978-1-62708-232-7
... in the 1-2-3-4 type Sendzimir mill The smaller diameter work rolls, which deform the steel sheets, are driven by the four second-intermediate drive rolls through frictional contact with the first-intermediate rolls. The screw-down mechanism of the mill is regulated by rotary positioning of the two...
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
... requires heavy mechanical working at high temperatures. Conventional heat treatment, performed near the melting point of the alloy, is insufficient to adequately refine and homogenize the high-temperature carbides. There are three contributing causes to these failures. The primary factor is the coarse...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006835
EISBN: 978-1-62708-329-4
...-die and upset forgings are produced from billets, bar stock, or a preform, all of which have received some previous mechanical working. The major problems associated with melting and casting practice are the development of centerline segregation and porosity and a condition known as scabs...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001614
EISBN: 978-1-62708-225-9
... in Failure Analysis , Vol 1 , 1st ed. , ASM International , 1992 , pp. 332 – 41 . 4. Knott J. and Withey P. : Fracture MechanicsWorked Examples , 2nd ed. , The Institute of Materials , London , 1993 , pp. 86 – 99 . 5. Kosec B. , Kosec L. , and Kopac J. : Eng...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001056
EISBN: 978-1-62708-214-3
... propagation was caused not only by mechanical fatigue but also by the pressurized heavy-water environment itself. Experimental work has confirmed the presence of fluctuations in a coolant zone with stratified temperature layers. These fluctuations are associated with variations in moderator flow, which allow...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001779
EISBN: 978-1-62708-241-9
... , show the hardness of pitted area was higher than the hardness away from the pitted area. Results were predictable since the mechanical working of the surface and decrease in grain size, increase the surface hardness. Whereas, material with higher hardness has a better abrasion resistance, cold working...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003507
EISBN: 978-1-62708-180-1
... are produced from billets, bar stock, or a preform that has received some previous mechanical working. The product may be suitable for immediate application, but in many cases, it serves as the starting material for another (so-called secondary) deformation process, such as drawing, hot forging, cold forging...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001299
EISBN: 978-1-62708-215-0
... ). The inclusion appeared to be Al 2 O 3 , as this type of hard refractory inclusion does not undergo deformation by heavy mechanical working, such as forging. However, actual characterization of the inclusion could not be confirmed owing to a lack of appropriate instrumentation at the time of investigation...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006910
EISBN: 978-1-62708-395-9
.../j.engfracmech.2012.02.001 29. Cotterell B. and Reddell J.K. , The Essential Work of Plane Stress Ductile Fracture , Int. J. Fract. , Vol 13 , June 1977 , p 267 – 277 10.1007/BF00040143 30. Broberg K.B. , Critical Review of Some Theories in Fracture Mechanics , Int. J...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001849
EISBN: 978-1-62708-241-9
... of thermal and mechanical stresses imposed on the roll during metal working. Work rolls used for guiding, rolling, and straightening of metal products (flats, bars, profiles, etc.) are widely used in the metal-forming industry. Metal-working rolls are primarily manufactured from forged or cast steel...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001080
EISBN: 978-1-62708-214-3
... be completely free. Thus, the slippage of the disk would move the nut in a clockwise direction, loosening it and making it ineffective. The heavy vibration of the turbine was attributed to the ineffective disk locking mechanism. The two mechanisms that were intended to lock the disk worked against each...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001848
EISBN: 978-1-62708-241-9
... Working Dies Failures Experimental Procedure Result and Discussion Fatigue Failures Modes Problems Associated with Valve Product Fatigue Failures’ Mechanisms Induced by Forging Process Conclusion In this article, examples of failed hot forging dies were studied and analyzed. We have...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
...-working and hot-working applications. It reviews problems introduced during mechanical design, materials selection, machining, heat treating, finish grinding, and tool and die operation. The brittle fracture of rehardened high-speed steels is also considered. Finally, failures due to seams or laps...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006818
EISBN: 978-1-62708-329-4
... Abstract This article discusses failure mechanisms in tool and die materials that are very important to nearly all manufacturing processes. It is primarily devoted to failures of tool steels used in cold working and hot working applications. The processes involved in the analysis of tool...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047105
EISBN: 978-1-62708-225-9
... Abstract The locking collar on a machine failed suddenly when the shaft it restrained was inadvertently subjected to an axial load slightly higher than the allowable working load. The locking collar fractured abruptly, producing four large fragments. This allowed the shaft to be propelled...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001677
EISBN: 978-1-62708-222-8
... point, indicated that severe cold-working had occurred in the material. Thus, the values are in keeping with what would be expected for a cold-worked AISI 420 stainless steel. Mechanical Properties of the Steel Spoon Table 1 Mechanical Properties of the Steel Spoon Property Mean Std. Dev...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001175
EISBN: 978-1-62708-231-0
... Abstract A water tube boiler with two headers and 15.5 atm working pressure became leaky in the lower part due to the formation of cracks in the rivet-hole edges. The boiler plate of 20 mm thickness was a rimming steel with 0.05% C, traces of Si, 0.38% Mn, 0.027% P, 0.035% S, and 0.08% Cu...