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high-strength low-alloy steels

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Published: 01 June 2019
Fig. 1 Fracture surface of cast 10-cm (4-in.) high-strength low-alloy steel chain link that failed because of internal hydrogen-assisted cracking. Note hydrogen flake. 0.25× More
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Published: 15 January 2021
Fig. 53 Fatigue striations in a vanadium high-strength, low-alloy steel. (a) Longitudinal-transverse orientation; stress-intensity range (Δ K ) = 32.3 to 34.3 M P a m (29.4 to 31.2 ksi in .); and fatigue crack growth rate ( da / dN ) = 3.3 to 3.8 × 10 −5 cm/cycle. (b More
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Published: 15 January 2021
Fig. 16 Examples of ductile fracture on shear planes. (a) Void sheets from propagation of a crack between widely spaced inclusions within a shear band in a 4340 alloy steel (stress axis is vertical). Source: Ref 41 . (b) Ductile crack growth in high-strength, low-alloy steel (A710). Source More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047474
EISBN: 978-1-62708-221-1
... fracture surface ( Fig. 1 ). Fig. 1 Fracture surface of cast 10-cm (4-in.) high-strength low-alloy steel chain link that failed because of internal hydrogen-assisted cracking. Note hydrogen flake. 0.25× Conclusions The failure of this link was caused by an excessive hydrogen content given...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001768
EISBN: 978-1-62708-241-9
... cycling high-strength low-alloy steel cracking Charpy impact tests impact toughness ASTM A572 grade 50 (columbium-vanadium steel) Introduction Splice plates used in power transmission line towers are usually galvanized steel angles made of hot-rolled structural steels [ 1 ]. Several holes...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001799
EISBN: 978-1-62708-241-9
... to the transfer of material. gear shaft fatigue fracture seizing high-strength low-alloy steel scoring marks deformed grains uniaxial fatigue testing macrofeatures 4145 (high-strength low-alloy steel) UNS G41450 Introduction High-strength low-alloy steels are used for power transmission...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001836
EISBN: 978-1-62708-241-9
..., investigators concluded the pipe was contaminated with copper at the mill were it was produced. line pipe cracks copper contamination high-strength low-alloy pipe steel copper entrapment SEM backscattered electron analysis bend ductility API 5L X65 PSL2 (high-strength low-alloy steel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001816
EISBN: 978-1-62708-241-9
... components superplastic deformation boundary sliding dislocation creep high-strength low alloy steel decohesions traction testing grain size elongation Ti-Nb microalloyed ultrafine-grained steel (UGS steel, general) high-strength low-alloy steel (HSLA steel, general) Introduction A material...
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
..., enters the metal, diffuses to the crack tip region, and causes propagation by hydrogen stress cracking. This mechanism is no doubt involved in the environmental embrittlement of high-hardness, high-strength carbon, alloy, and stainless steels. While each of these mechanisms explains some...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
..., or weldments. These defects are caused by the presence of excessive hydrogen in the liquid melt prior to solidification. Microperforation may also occur, mainly when steels are exposed to very high-pressure hydrogen near room temperature. Hydrogen-induced blistering is most prevalent in low-strength alloys...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
.... These defects are caused by the presence of excessive hydrogen in the liquid melt prior to solidification. Microperforation may also occur, mainly when steels are exposed to very high-pressure hydrogen near room temperature. Hydrogen-induced blistering is most prevalent in low-strength alloys...
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
... of rail steel . J. Mater. Eng. Perform. 9 ( 6 ), 700 – 709 ( 2000 ) 10.1361/105994900770345584 21. Pearce R. , Mazhar A.A. , Fatigue behaviour of certain high-strength, low-alloy steel sheets . Met. Technol. 3 , 79 – 85 ( 1976 ) 10.1179/030716976803391665 22. Parker...
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
... of the dragline bucket were warned against further hardfacing of these teeth. Design Stress concentration Ultrahigh-strength low-alloy steel Hydrogen damage and embrittlement A tooth used on the digging edge of a large dragline bucket ( Fig. 1 ) failed after several weeks in service. The tooth...
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
... Abstract A cast dragline bucket tooth failed by fracturing after a short time in service. The tooth was made of medium-carbon low-alloy steel heat treated to a hardness of 555 HRB. The fracture surface was covered with chevron marks. These converged at several sites on the surface of the tooth...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001260
EISBN: 978-1-62708-235-8
... Abstract One percent Cr-Mo low alloy constructional steel is widely used for high tensile applications, e.g., for manufacture of high tensile fasteners, heat treated shafts and axles, for automobile applications such as track pins for high duty tracked vehicles etc. The steel is fairly through...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001820
EISBN: 978-1-62708-241-9
... high strength low alloy steel . Mater. Des. 30 , 4088 – 4094 ( 2009 ) 10.1016/j.matdes.2009.05.025 14. Zhao M. , Shan Y. , Investigation on the H 2 S-resistant behaviors of acicular ferrite and ultrafine ferrite . Mater. Lett. 57 , 141 – 145 ( 2002 ) 10.1016/S0167-577X(02...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0047010
EISBN: 978-1-62708-234-1
... including a maraging steel (18% Ni, grade 250), a vanadium-modified 4337 gun steel (4337V), H19 tool steel, and high-temperature alloys Rene 41, Inconel 718, and Udimet 630. All the alloys evaluated had been used in mortar tubes previously or were known to meet the estimated minimum yield strength...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0047423
EISBN: 978-1-62708-236-5
... not been used to make the weld. Repair welds in high-strength steel castings should always be made with low-hydrogen filler materials. Filler metals Heat affected zone Repair welding Fe-0.18C-1.37Ni-0.42Cr-0.31Mo Fatigue fracture Joining-related failures A large shackle used in operating...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... by hardness check or destructive testing, chemical analysis • Loading direction may show failure was secondary • Short-term, high-temperature, high-stress rupture has ductile appearance (see creep) • Load exceeded the dynamic strength of the part • Check for proper alloy and processing as well as proper...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... was secondary• Short-term, high-temperature, high-stress rupture has ductile appearance (see creep) • Load exceeded the dynamic strength of the part• Check for proper alloy and processing as well as proper toughness, grain size• Loading direction may show failure was secondary or impact induced• Low...