1-20 of 39 Search Results for

conventional forgings

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001615
EISBN: 978-1-62708-235-8
...Abstract Abstract Carbon steel axle forgings were rejected due to internal cracks observed during final machining. To determine the cause of the cracks, the preforms of the forging were analyzed in detail at each stage of the forging. The analysis revealed a large central burst...
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
.... It is well known that regions containing high concentrations of coarse carbide microstructure as a result of improper forging may become the initiation point for subsequent quench cracking, particularly with parts of complex shape ( Ref 25 ). It is important to provide a sufficient forging reduction ratio...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001731
EISBN: 978-1-62708-217-4
... in aircraft parts. The results of the laboratory studies indicate that unusual care is necessary in the processing and fabrication of ultra-high-strength steel and in the design and maintenance of the structures in which it is used. Aircraft components Forgings Landing gear Ultrahigh strength steels...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
... tolerances are not critical, it is advisable to use cheap conventional cold drawn steel (CDS) tube. Flow forming, therefore, offers several advantages over conventional tube making methods. Flow forming is used to produce a seamless tube with tight dimensional tolerances. Seamless tubing, theoretically...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001666
EISBN: 978-1-62708-229-7
... possibly related to chloride or sulphate ion steam contaminants. Subsequent sectioning and conventional metallography confirmed both the validity of the conclusions and the replication techniques. Corrosion products Field metallography Intergranular corrosion Turbine discs 2.5Ni-Cr-Mo-V Stress...
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
... grinding damage, machining marks or nicks, and quench cracks resulting from heat treating operations. Frequently, stress concentrators are introduced during hot or cold forming of shafts; these include surface discontinuities, such as laps, seams, pits and forging laps, and internal imperfections...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001646
EISBN: 978-1-62708-219-8
... are comparatively more rigid than conventional wire ropes with fiber cores and therefore are more susceptible to the adverse effects of bending stresses. The reasons for premature in-service wire rope failures are rather complex but frequently may be attributed to inappropriate wire quality and/or abusive operating...
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
..., and scabs. The article provides a discussion on the imperfections found in steel forgings. The problems encountered in sheet metal forming are also discussed. The article concludes with information on the causes of failure in cold formed parts. anisotropy blisters centerline shrinkage chemical...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001782
EISBN: 978-1-62708-241-9
.... Carpenter Technical Articles , January 1999 3. Baeslack W.A. , Davis J.R. , Cross C.E. : Selection and weldability of conventional titanium alloys . In: ASM Handbook Volume 6: Welding, Brazing, and Soldering , 10th edn. , pp. 507 – 523 . ASM International ( 1993 ) 10.31399...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001536
EISBN: 978-1-62708-229-7
... to 260 °C (400 to 500 °F) and a pressure of 6.9 MPa (1000 psi). In addition to wrought type 304 stainless steel piping material, the affected portion of the loop included a 90° elbow and an adjacent 15° elbow (or wedge), both forged of type 304 stainless steel. The weld filler metal was type 308...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001636
EISBN: 978-1-62708-217-4
... to standard finishing (machining, shot peening, etching, anodizing) and secondary cracks close Thermomechanical Processing and Heat Treatment As stated earlier, the failed rotor hub (M323) was a monolithic Ti-6Al-4V titanium alloy forging. The forging was produced from billet stock by conventional...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001818
EISBN: 978-1-62708-180-1
... fatigue hydrogen embrittlement metallurgical discontinuities pressure vessel stress raisers stress rupture stress-corrosion cracking welding PRESSURE VESSELS, piping, and associated pressure boundary items of the types used in nuclear and conventional power plants, refineries, and chemical...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001820
EISBN: 978-1-62708-180-1
.... This leaves a nonfused portion, thereby reducing the effective wall thickness. These welding processes locally heat the edges of the plate to a suitable forging temperature; the edges are then pushed together, upsetting the wall thickness and forming a bond. In an electric-resistance welded seam, the weld...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... by an arrow). (b) Plot showing how fracture information is used to establish initial and recurring inspection requirements Fig. 7 Effect of welding on the life of a carbon steel structure. (a) and (b) 46 cm (18 in.) long crack found in a carbon steel as-forged nozzle that was arc gouged. Failure...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
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
... is to planar grind the specimens with a conventional alumina grinding stone. This requires a special-purpose machine, because the stone must rotate at a high speed, ≥1500 rpm, to cut effectively. The stone must be dressed regularly with a diamond tool to maintain flatness, and embedding of alumina abrasive...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
... of real data, but it requires an enormous amount of information for substantiation. A slightly more involved, but also more useful, means of showing the same information incorporates the Haigh diagram with S max and S min axes to produce a constant-life diagram. The conventional plot associated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... rolled, extruded, or forged products are stressed in the short-transverse direction. In wrought austenitic stainless steels, crack paths are usually transgranular if proper heat treatment has been employed. However, if thermal processing has produced sensitization because of carbide precipitation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... to the end of life must be defined and limited. The conventional design methods are supplemented by the fracture mechanics methods, in which cracklike flaws in the structure are anticipated and included in the design. These methods have all contributed to a better understanding of fatigue crack nucleation...
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
... (a) Macrograph of fracture, (b) SEM fractograph, and (c) light micrograph showing shrinkage cavities in an unusual tensile fracture from a carbon steel casting. The microstructure was revealed using nital. Fig. 25 Light micrographs of two cross-sectional views of a seam found on a closed-die forged...