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17-7 PH

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001547
EISBN: 978-1-62708-225-9
...Abstract Abstract Life testing of cyclic loaded, miniature extension springs made of 17-7 PH stainless steel wire and AISI 302 Condition B stainless steel wire has shown end hook configuration to be a major source of weakness. To avoid cracking and subsequent fatigue failure, it was found...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c0048169
EISBN: 978-1-62708-233-4
...Abstract Abstract A valve-seat retainer spring (made of 0.23 mm thick 17-7 PH stainless steel) from a fuel control on an aircraft engine was found to be broken after 3980 h of service. The two inner tabs were found to be broken off. The part was revealed to be in relative rotation against its...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006394
EISBN: 978-1-62708-217-4
...Abstract Abstract A preflight inspection found a broken diaphragm from a side controller fabricated from 17-7 PH stainless steel in the RH 950 heat treatment condition. Failure occurred by cracking of the base of the flange-like diaphragm. The crack traveled 360 deg around the diaphragm...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001707
EISBN: 978-1-62708-217-4
...: A286 (S66286) semi-austenitic: 17-7 PH (S17700), PH 15-7 Mo (S15700), AM 350 (S35000), AM 355 (S35500) martensitic: PH 13-8 Mo (S13800), 15-5 PH (S15500), 17-4 PH (S17400), Custom 450 (S45000), Custom 455(S45500). The martensitic alloys only require a single step heat treatment...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... are almost always needed to establish parameters when heat treating conditions are tailored. An adjustment in heat treating conditions was successful in avoiding variation in properties among sublots of heat treated AISI type 631 (17-7 PH) stainless steel Belleville washers. Two of these washers—one...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... buckling. (a) Configuration and dimensions (given in inches). (b) Relation of maximum applied load to the section thickness of the flanges and web of the side-rail extrusion Fig. 7 Comparison of longitudinal profiles of an 1138 steel shotgun barrel before and after testing. 1000 rounds of a new...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
... and improved designs of a 17-7 PH stainless steel valve-seat retainer spring. As originally designed, the inner tabs on the spring broke off as a result of fatigue, and the outer tab exhibited wear. Abstract Abstract This article discusses the common causes of failures of springs, with illustrations...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001769
EISBN: 978-1-62708-241-9
.... Biochem. 31 , 1563 – 1571 ( 1999 ) 10.1016/S0038-0717(99)00082-6 17. Hammes F. , Verstraete W. : Key roles of pH and calcium metabolism in microbial carbonate precipitation . Rev. Environ. Sci. Biotechnol. 1 , 3 – 7 ( 2002 ) 10.1023/A:1015135629155 18. Baskar S...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... Failure mechanisms induced by the white layer. Source: Ref 22 Fig. 8 Height change vs. number of compound impact cycles for aluminium 2011 T3 specimens tested against 17-4 PH stainless steel counterfaces with varying impact stresses (sliding velocity 5.33 m/s). Source: Ref 5 Fig. 9...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
.... , Wear of Metals at High Sliding Speeds , Wear , Vol 44 , 1977 , p 109 – 126 10.1016/0043-1648(77)90089-8 33. Rice S.L. , Nowotny H. , and Wayne S.F. , Specimen Counterface Bulk Hardness Effects in Impact Wear of 17-4 PH Steel Pairs , Wear , Vol 103 ( No. 2 ), 1985 , p...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001715
EISBN: 978-1-62708-219-8
... Morphologies in Wire samples from Salt River P-3156, P-3128, & P-3343; Agua Fria River P-1010 & P-1255; New River P-2012,” interagency report, 1997 . 7. Leslie W. C. The Physical Metallurgy of Steels , McGraw-Hill Book Co. , New York , 1981 . 8. Krauss G. , Principles...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003556
EISBN: 978-1-62708-180-1
... for the wormhole pitting of carbon steel piping used to transport a slurry of magnesium hydroxide and alumina at pH 10.5 ( Ref 17 ). Whatever the environmental conditions, microorganisms need water, a source of energy to drive their metabolism, and nutrients to provide essential building materials (carbon...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001632
EISBN: 978-1-62708-234-1
...-heat load welding. Another possibility is strainage cracking 7 that can occur when alloy 718 is welded in the PH condition and the residual stresses are not annealed prior to exposing the material to an elevated temperature. Aging in the presence of residual stress in the heat-affected zone can...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... specific ranges of temperatures or pH. Presence of a corrosion-induced protective surface film (e.g., an oxide/hydroxide film) on the metal component. Metals that experience SCC develop a protective film on the surface when exposed to the environment containing the injurious ions. Although...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006788
EISBN: 978-1-62708-295-2
... Sulfate-reducing prokaryote (SRP) Pitting due to sulfides, chloride Anaerobic. Near-neutral pH. Dark-colored corrosion products with iron sulfide. Enhanced Cl - levels Ref 116 SRP + secondary oxidation Pitting stabilized by thiosulfate formed by oxidation of sulfide Cyclic aerobic/anaerobic...
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
... were: Temperature: 285 °C (545 °F) Pressure: 7 MPa (1000 psi) pH: 6.5 to 7.5 Chloride content: <0.1 ppm Oxygen content: 0.2 to 0.3 ppm Electrical conductivity: <0.4 mmho/cm Analysis of the pipe showed the chemical composition to be entirely normal for type 304 stainless...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... in the general form: (Eq 5) M → M n + + n e − where n is the number of electrons released. A few examples are: (Eq 6) Ag → Ag + + e − (Eq 7) Zn → Zn 2 + + 2 e − (Eq 8) Al → Al 3 + + 3 e − In each case, the number of electrons...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001026
EISBN: 978-1-62708-214-3
...Abstract Abstract Cracks were discovered in the cast 17-4 PH stainless steel outboard leading edge flap support of an aircraft wing during overhaul inspection. Failure analysis focused on an apparently intergranular area of fracture surface. It was determined that the original mode of crack...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001816
EISBN: 978-1-62708-180-1
.../h · ft 2 · °F Economizers 5680 1000 28–40 5–7 15,770–31,540 5000–10,000 Water walls 22,700–45,400 4000–8000 115–125 20–22 126,160–394,250 40,000–125,000 Reheaters 1700–2270 300–400 60–95 11–17 19,000–38,000 6000–12,000 Superheaters 1135–2840 200–500 60–100 11–18...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006794
EISBN: 978-1-62708-295-2
.... Materials having both superior mechanical properties and high noblity are desired to effectively resist corrosive wear. Wear-corrosion synergy is strongly dependent on the corrosivity of the solution. In general, the pH level of a solution largely reflects its corrosivity ( Fig. 7 ). For instance...