1-20 of 170 Search Results for

necking

Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0089682
EISBN: 978-1-62708-230-3
... Abstract A neck fitting (cast equivalent of AISI type 317) exhibited extreme corrosion with large, deeply pitted areas. It had been in service in a sulfite digester at 140 deg C (285 deg F) and 689 kPa (100 psi). The liquor was calcium bisulfite, and chloride content was reported to be low...
Image
Published: 01 January 2002
Fig. 87 Biaxial stress ratios that permit no necking, diffuse necking, and local necking. Source: Ref 32 More
Image
Published: 30 August 2021
Fig. 2 Necking in a formed part. (a) Start of necking is easier to feel than see. (b) Visible neck not yet split open. Source: Ref 1 . Reprinted with permission from MetalForming Magazine and the Precision Metalforming Association More
Image
Published: 15 January 2021
Fig. 87 Biaxial stress ratios that permit no necking, diffuse necking, and local necking. Source: Ref 32 More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0091622
EISBN: 978-1-62708-230-3
... Abstract A CF-8M (cast type 316) neck liner or manway was removed from the top of a digester vessel. Repeated attempts to repair the part in the field during its life cycle of many years had failed to keep the unit from leaking. The casting was a CF-8M modified with the molybdenum level...
Image
Published: 01 January 2002
Fig. 25 Local and diffuse necking in copper and in 200 nickel. Width-to-thickness ratio ∼24:1. Note that fracture initiation has occurred in the local necks at the edges of the specimens. More
Image
Published: 15 January 2021
Fig. 25 Local diffuse necking in copper and in Monel 400. Width-to-thickness ratio, ~24:1. Note that fracture initiation occurred in the local necks at the edges of the specimens. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0047586
EISBN: 978-1-62708-236-5
... Abstract A fuel-nozzle-support assembly showed transverse indications after fluorescent liquid-penetrant inspection of a repair-welded area at a fillet on the front side of the support neck adjacent to the mounting flange. Visual examination disclosed an irregular crack. The crack through...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001255
EISBN: 978-1-62708-232-7
... Abstract Several back up rolls of 1400 mm barrel diam from a broad strip mill broke after a relatively short operating time as a result of bending stresses when the rolls were dismantled. The fracture occurred in the conical region of the neck at about 600 mm diam. The rolls were shaped steel...
Image
Published: 01 January 2002
Fig. 28 Stress-corrosion cracking liner of cast neck liner. (a) Illustration of neck liner removed from a pulp digester vessel. Note the abrupt change in cross section that led to a caked-on buildup. Dimensions given in millimeters (inches). (b) Extensive SCC into the 317 plate on the inner More
Image
Published: 01 January 2002
Fig. 26 Diffuse and localized necks in an 1100 aluminum sheet tensile specimen. Source: Ref 51 More
Image
Published: 01 January 2002
Fig. 45 Sheet samples with an initial w / t ratio of 6. (a) Single local neck (sample with tensile strength, 1586 MPa, or 230 ksi). (b) Two local necks (sample tensile strength, 827 MPa, or 120 ksi). (c) Fracture of specimen in (a) More
Image
Published: 01 January 2002
Fig. 58 Intergranular corrosion. (a) Sample from a cast stainless steel neck fitting. (b) Region adjacent to the intergranular corrosion revealing extensive σ-phase precipitation at grain boundaries; electrolytic etching using 10 N KOH. (c) Same area as (b) after repolishing and etching More
Image
Published: 30 August 2021
Fig. 34 Intergranular corrosion. (a) Sample from a cast stainless steel neck fitting. (b) Region adjacent to the intergranular corrosion revealing extensive σ-phase precipitation at grain boundaries; electrolytic etching using 10 N KOH. (c) Same area as (b) after repolishing and etching More
Image
Published: 15 January 2021
Fig. 26 Diffuse localized necks in an 1100 aluminum alloy sheet tensile specimen. Source: Ref 52 More
Image
Published: 15 January 2021
Fig. 37 (a) Illustration of the neck liner that exhibited stress-corrosion cracking (SCC). Dimensions given in millimeters (inches). (b) Photograph of SCC of type 317 stainless steel plate that initiated at the inside-diameter surface. (c) Close-up view of SCC in the neck liner More
Image
Published: 01 June 2019
Fig. 1 Intergranular corrosion. (a) Sample from a cast stainless steel neck fitting. (b) Region adjacent to the intergranular corrosion revealing extensive a-phase precipitation at grain boundaries; electrolytic etching using 10 N KOH. (c) Same area as (b) after repolishing and etching More
Image
Published: 01 June 2019
Fig. 1 Stress-corrosion cracking liner of cast neck liner. (a) Illustration of neck liner removed from a pulp digester vessel. Note the abrupt change in cross section that led to a caked-on buildup. Dimensions given in millimeters (inches). (b) Extensive SCC into the 317 plate on the inner More
Image
Published: 01 June 2019
Fig. 1 Insertion neck of roll with broken end. More
Image
Published: 01 June 2019
Fig. 5 Cross section through neck parallel to fracture, Heyn etch. Top crusts at A and B. 0.17 × More