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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.c9001323
EISBN: 978-1-62708-215-0
...Abstract Abstract Original carbon steel and subsequent replacement austenitic stainless steel superheater tube U-bend failures occurred in a waste heat boiler. The carbon steel tubes had experienced metal wastage in the form of caustic corrosion gouging, while the stainless steel tubes failed...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001387
EISBN: 978-1-62708-215-0
...Abstract Abstract Nickel anodes failed in several electrolysis cells in a heavy-water upgrading plant. Dismantling of a cell revealed gouging and the presence of loosely attached black porous masses on the anode. The carbon steel top, plate was severely corroded. An appreciable quantity...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001495
EISBN: 978-1-62708-221-1
... alloy steel and thus met material specification. The failure was a result of torsional fatigue in the tensile plane, originating from one of several gouges around the splined radius of the shaft. The fatigue crack progressed for a large number of cycles before final fracture. The shaft met metallurgical...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048777
EISBN: 978-1-62708-229-7
..., indicative of pre-existing cracks, were revealed by examination of the fracture surface at the drain grooves arc gouged at the nozzle sites. A thin layer of material with a dendritic structure was observed at the groove surface. The dendritic layer was revealed by qualitative microprobe analysis to contain...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001277
EISBN: 978-1-62708-215-0
... accelerate corrosion through galvanic effects and can promote hydrogen damage. Ultrasonic testing was recommended to locate tubes with severe gouging and corrosion, which are suspect locations for hydrogen damage. The source of the copper should be identified and future chemical cleaning of the boiler should...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c0048808
EISBN: 978-1-62708-228-0
... by dilution of the alloy and the presence of sulfur caused hot shortness. The necessary internal stress to produce extensive cracking was produced by the differential thermal expansion of the carbon and stainless steels. Periodic careful gouging of the affected areas followed by repair welding was recommended...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048814
EISBN: 978-1-62708-229-7
... by the submerged arc process with a backing strip. The backing was back gouged off, and the weld was completed from the inside with E8018-C3 electrodes by the shielded metal arc process. Striations of the type normally associated with progressive or fatigue-type failures including beach marks that allowed tracing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0047432
EISBN: 978-1-62708-224-2
... at an incomplete penetration defect at the root of the fabrication weld. As a result of this failure, steps were taken to ensure that good welding practice (back-gouging) would be followed in the future fabrication of these links. Penetration Stress concentration Weld defects Low-alloy steel Fatigue...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001572
EISBN: 978-1-62708-236-5
...Abstract Abstract Extensive slipper/wobbler failures occurred in the integrated drive generators that incorporated TiN coated wobblers, during the production acceptance test. Similar coated wobblers had passed the application tests. The nature of the failure was extensive gouging of the wobbler...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0091853
EISBN: 978-1-62708-223-5
... in Fig. 3 . Because the quartz particles are sharp and angular, gouging abrasion was the primary mechanism of material removal ( Fig. 4 ) at the wear ring on the edge of the grinding plate. The forces generated during gouging abrasion are higher than the yield strength of the cast iron, and these areas...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
...General classification of abrasive wear in mining and minerals processing equipment Table 1 General classification of abrasive wear in mining and minerals processing equipment Classification Gouging abrasion High-stress abrasion Low-stress abrasion Erosion-corrosion Abrasive size...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
...: A Textbook in Tribology , CRC Press , 1996 , p 205 – 211 10.1201/9781439821893 30. Borik F. and Sponseller D.L. , Gouging Abrasion Test for Materials Used in Ore and Rock Crushing, Part 1: Description of the Test , J. Mater. , Vol 6 , 1971 , p 576 – 589 31. Kalpakjian S...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... in the investigation: ( a ) beveled gear, ( b ) sleeve, ( c ) outer race, ( d ) inner race, ( e ) rolling elements, ( f ) generic schematic of assembly Beveled Gear and Sleeve The most notable features on the beveled gear and gear-shaft sleeve were the apparent heavy localized gouging on one side of each...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001664
EISBN: 978-1-62708-226-6
... the plate prior to implantation in the patient to make it conform to the contour of the bone. This would require a tool to grip the device, and such a tool could have caused the gouge marks which are so prominent on the surface of the plate. It is important to note that most manufacturers explicitly caution...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001374
EISBN: 978-1-62708-215-0
... and seats are characteristic of erosion-corrosion: selected area gouging, the wavy texture of the gouged areas, the absence of corrosion product in the gouged area, the adherent, protective corrosion product on adjacent surfaces, and the uniform metal loss observed microscopically. Erosion-corrosion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001321
EISBN: 978-1-62708-215-0
... examination. Samples BlSl and B3S1 had the maximum corrosion damage which was confined to the crown (inside top or roof) of the tube in the form of gouging and a deep trench following the line of the welded fin. The bottom half of the tubes did not show any corrosion damage. Fig. 2 shows the type of attack...
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
... Fatigue Cracks Secondary Loads Weldments to the Pipe Wrinkles, Bends, or Buckles Internal Combustion Sabotage Longitudinal Weld Defects Mechanical damage consists of gouges or gouges and dents that have generally been produced by excavation or handling equipment during construction...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003521
EISBN: 978-1-62708-180-1
... direction Ratchet marks where origins join General wastage, roughening, pitting, or trenching Stress-corrosion and hydrogen damage may create multiple cracks that appear brittle. Gouging, abrasion, polishing, or erosion Galling or storing in direction of motion Roughened areas...
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
... also result in a pitting damage mode in boiler tubing, including hydrogen damage, phosphate corrosion, and caustic gouging. There are levels of damage modes. For instance, the previous example can generally be described as a corrosion damage mode, but this is a general term that is not very helpful...
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
... – 6 ]. Spalling can be divided into two principal categories according to the mechanism of failure [ 2 , 7 ]: Surface-initiated spalling that originates from thermal shock or firecracks or a stress raiser (e.g., bruise, roll mark, gouges) lying on the roll surface and propagates radially...