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440C

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047968
EISBN: 978-1-62708-225-9
... Abstract The radial-contact ball bearings (type 440C stainless steel and hardened) supporting a computer microdrum were removed for examination as they became noisy. Two sizes of bearings were used for the microdrum and a spring washer that applied a 50 lb axial load on the smaller bearing...
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Published: 01 January 2002
Fig. 6 Weld spots on contact surfaces of a type 440C stainless steel ball bearing. The spots are caused by static electrical discharges resulting from use of an electrically nonconductive grease. (a) and (b) Photographs of inner-raceway surface. 10 and 100×, respectively. (c) and (d) SEM More
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Published: 01 January 2002
Fig. 19 SEM views of the surface of the outer-ring raceway of a type 440C stainless steel radial-contact ball bearing that failed by rolling-contact fatigue and of particles found in the lubricant. (a) Lubricant-residue particles that flaked off the raceway. 100×. (b) Flaked surface showing More
Image
Published: 01 June 2019
Fig. 1 Weld spots on contact surfaces of a type 440C stainless steel ball bearing. The spots are caused by static electrical discharges resulting from use of an electrically nonconductive grease. (a) and (b) Photographs of inner-raceway surface. 10 and 100×, respectively. (c) and (d) SEM More
Image
Published: 01 June 2019
Fig. 1 SEM views of the surface of the outer-ring raceway of a type 440C stainless steel radial-contact ball bearing that failed by rolling-contact fatigue and of particles found in the lubricant. (a) Lubricant-residue particles that flaked off the raceway. 100×. (b) Flaked surface showing More
Image
Published: 30 August 2021
Fig. 33 Weld spots on contact surfaces of a type 440C (X90CrMoV18 or WN 1.4112) stainless steel ball bearing. The spots are caused by static electrical discharges resulting from the use of an electrically nonconductive grease. (a, b) Photographs of inner-raceway surface. Original magnification More
Image
Published: 01 June 2019
Fig. 1 Cracked type 440C stainless steel (a) aircraft wing flap hinge bearings. (b) Crack configuration of bearing 1 from (a). (c) Crack configuration of bearing 2 from (a). (d) Fracture surface of second crack in bearing 1. Arrow shows the probable fracture origin. 2.5x. (e) Fracture surface More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006448
EISBN: 978-1-62708-217-4
... Abstract Three wing flap hinge bearings were received by the laboratory for analysis. The bearings were fabricated from chromium-plated type 440C martensitic stainless steel. The intergranular fracture pattern seen in the electron fractographs, coupled with the corrosion pits observed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0047917
EISBN: 978-1-62708-227-3
... Abstract The support bearing of a hydrofoil vessel failed after only 220 h of operation. The bearing consisted of an outer ring made of chromium-plated AISI type 416 stainless steel and an inner ring with a spherical outer surface made of AISI type 440C stainless steel, with a plastic material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001663
EISBN: 978-1-62708-236-5
... used. Our investigation supports the supposition that a live round of ammunition was inadvertently fired. Adapters Automatic weapons Explosions Rifles 4130 UNS G41300 440C UNS S44020 (Other, general, or unspecified) fracture Training exercises are essential at many laboratories...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047935
EISBN: 978-1-62708-225-9
... Abstract Ball bearings made of type 440C stainless steel hardened to 60 HRC and suspected as the source of intermittent noise in an office machine were examined. A number of spots on the inner-ring raceway were revealed by scanning electron microscopy. The metal in the area around the spot...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001545
EISBN: 978-1-62708-236-5
... Abstract The presence of secondary, branching intergranular stress-corrosion cracking in a type 440C stainless bearing caused the analyst to overlook the real culprit, which was a mechanically-initiated, primary transgranular crack that propagated through the steel's hard chromium carbide...
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Published: 01 January 2002
Fig. 20 Influence of normalized coating thickness on the performance of HVOF coating on 440C steel substrate (σ = 1840 MPa, or 267 ksi) More
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Published: 01 June 2019
Fig. 1 The presence of secondary, branching intergranular stress-corrosion cracking (arrows) in a type 440C stainless bearing caused the analyst to overlook the real culprit — a mechanically initiated, primary transgranular crack that propagated through the steel's hard chromium carbide (box More
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Published: 30 August 2021
Fig. 52 Scanning electron microscope views of the surface of the outer-ring raceway of a type 440C stainless steel radial-contact ball bearing that failed by rolling-contact fatigue and of particles found in the lubricant. (a) Lubricant-residue particles that flaked off the raceway. Original More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001361
EISBN: 978-1-62708-215-0
... the race was also of 17-4PH hardened to 26 to 35 HRc. The ball was constructed of 440C steel hardened to 55 to 62 HRc. The liner was a Teflon impregnated sintered bronze matrix. Visual Examination of General Physical Features Rod and Body The fracture surface was found to contain beach marks...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
... magnetron sputtering TiN ZrN HfN CrN Mo TiAlN TiZrN (TiAlV)N 440C stainless steel (RCF life of 6.3 and 1.7 × 10 6 cycles at 4.0 and 5.4 GPa) Three-ball on rod (lubricated) 4.0 and 5.4 0.25, 0.5, 0.75, 1.00 N/A 55 → 59 HRC 59 HRC 36 and 8.7 ( L 10 ) (b) 36 and 5.5 ( L 10 ) (b) 81 and 9.7 ( L...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... lubrication for satisfactory operation. For bearings that operate in moderately corrosive environments, AISI type 440C stainless steel should be considered. Its maximum obtainable hardness is about 62 HRC, and it is recommended for use at temperatures below 175 °C (350 °F). However, the dynamic-load...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... of an outer ring made of chromium-plated AISI type 416 stainless steel and an inner ring with a spherical outer surface made of AISI type 440C stainless steel, with a plastic material between the two. The plastic material was bonded to the outer ring. Fig. 8 Plastic-lined stainless steel spherical...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... number Composition, wt% C Si Mn P S Cr Mo Ni N V AISI 440B … 1.1 1 1 … … 12.5–14.5 0.75 … … … X47Cr14 1.3541 0.43–0.50 0–1.00 0–1.00 0–0.040 0–0.030 12.5–14.5 … 0–1.00 … … AISI 440C … 1.00 0.30 0.40 … … 17.00 0.50...