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ultrahigh-strength steels

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047428
EISBN: 978-1-62708-235-8
... steel tooth. Given the small critical crack sizes characteristic of ultrahigh-strength materials, it is generally unwise to weld them. It is particularly inadvisable to hardface ultrahigh-strength steel parts with hard, brittle, crack-prone materials when high service stresses will be encountered...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047479
EISBN: 978-1-62708-221-1
... steel tooth. Given the small critical crack sizes characteristic of ultrahigh-strength materials, it is generally unwise to weld them. It is particularly inadvisable to hardface ultrahigh-strength steel parts with hard, brittle, crack-prone materials when high service stresses will be encountered...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047508
EISBN: 978-1-62708-221-1
... in ultrahigh-strength low-alloy steel that had been heat treated to a hardness of 555 HB. Fig. 1 Ultrahigh-strength steel dragline bucket tooth that failed due to environmental hydrogen-assisted cracking. See also Fig. 2 . Investigation Chevron marks on the fracture surface led...
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
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001291
EISBN: 978-1-62708-215-0
... was manufactured from an ultrahigh-strength 35 NCD 16 steel (French alloy specification). The strut was shot peened before the sliding section was hard chromium plated. Performance of Other Parts in Same or Similar Service The manufacturer's previous experience indicated that this banded cracking could lead...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001837
EISBN: 978-1-62708-241-9
.... , Sinha P.P. , Sarma D.S. : Effect of austenitizing temperature and cooling rate on the structure and properties of a ultrahigh strength low alloy steel . J. Mater. Sci . 41 , 2971 – 2980 ( 2006 ) 10.1007/s10853-006-6718-1 2. Francis J.A. , Bhadeshia H.K.D.H. , Withers...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
... , Fracture Toughness of High-Strength Materials: Theory and Practice , vol. 120 ( ISI Publication , London , 1970 ), pp. 112 – 115 24. Tomita Y. , Effect of hot-rolling reduction on shape of sulfide inclusions and fracture toughness of AISI 4340 ultrahigh strength steel . Metall. Trans...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... resistance can be improved by changing to a material with higher strength and endurance limit, as shown in the following example. Example 2: Fatigue Fracture of Modified 1035 Steel Cap Screws The drive-line assembly shown in Fig. 7(a) failed during vehicle testing. The vehicle had traveled 9022 km...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... and Cyclic IG Processes Cyclic microvoid and cyclic IG processes ( Ref 13 ) have also been observed. The former is shown in Fig. 6 for an ultrahigh-strength D6AC steel tested at a stress-intensity factor range (Δ K ) greater than 60 MPa m (54.6 ksi in. ). The crack advance per cycle...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... quenched and tempered to a tensile strength of 1793 to 1931 MPa (260 to 280 ksi) have been attributed to stress concentration that resulted from a large grain size in the shank. Other failures in these 25 mm (1 in.) diameter bolts, as well as in other similarly quenched-and-tempered steel bolts, were...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
...-intensity factor range (Δ K ) values ( Ref 17 ). Cyclic Microvoid and Cyclic Intergranular Processes <xref rid="a0006777-ref18" ref-type="bibr">(Ref 18)</xref> Cyclic microvoid and cyclic IG processes have also been observed. The former is shown in Fig. 6 for an ultrahigh-strength D6AC steel tested...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001762
EISBN: 978-1-62708-241-9
.... , Beachem C.D. , Hill M. , Warke R.R. : A Fractographic Analysis of the Relationships Between Fracture Toughness and Surface Topography in UltrahighStrength Steels . Electron Fractigraphy , pp 13 – 32 . ASTM STP 436, ASTM , Philadelphia ( 1968 ) 10.1520/STP32000S 7. Clarke...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
..., polymethyl methacrylate; PBI, polybenzimidazole; PEEK, polyetheretherketone; PTFE, polytetrafluoroethylene; UHMWPE, ultrahigh molecular weight polyethylene; HDPE, high-density polyethylene. (a) S , tensile strength; ε, elongation to break Fig. 4 Micrographs showing surfaces of worn polymers...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
...-strength quenched and tempered steel is significantly smoother overall than is the overload fracture of a pearlitic steel or annealed copper. Also, fracture surface roughness increases as a crack propagates, so the roughest area on the fracture surface is usually the last to fail ( Fig. 4 ) ( Ref 4...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... embrittlement. Macroscale fractographic features Table 1 Macroscale fractographic features Mark/Indication Implication Visible distortion Plastic deformation exceeded yield strength and may indicate instability (necking, buckling) or post-failure damage Visible nicks or gouges Possible...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006771
EISBN: 978-1-62708-295-2
... important attributes are listed for preliminary insight into the strengths and limitations of these techniques for chemical characterization of surfaces. The article describes the basic theory behind each of the different techniques, the types of data produced from each, and some typical applications. Also...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... in these devices, the three common metal alloys used are titanium, cobalt-chromium, and stainless steel. Other components may also be made from different materials, such as ultrahigh-molecular-weight polyethylene (in the case of the articulating surface within artificial knees or artificial disks) or ceramic...
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
... specimen (an ultrahigh-strength steel) wore the counterface (a stainless steel) and yet hardly wore at all itself. In contrast, the longer and less stiff specimen wore considerably more, yet its counterface was worn much less than that with the stiffer specimen. Fig. 14 Mass loss versus number...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003534
EISBN: 978-1-62708-180-1
... of these techniques, the types of data produced from each, and some typical applications. The article explains the strengths of AES, XPS, and TOF-SIMS based on data obtained from the surface of a slightly corroded stainless steel sheet. Auger electron spectroscopy chemical characterization stainless steel...