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Keywords: steels
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2024
ISBN: 978-0-8031-7745-1
..., conventionally manufactured bearing balls with diameters of 0.6–1.0 mm were used. Microspheres of different rolling bearing steels, such as AISI 52100 (DIN 100Cr6) and AISI 420 (DIN X46Cr13), were therefore studied in detail. The micro compression test made possible an investigation of the elastic-plastic...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2004
ISBN-10: 0-8031-3472-X
ISBN: 978-0-8031-3472-0
... Using the Zerilli-Armstrong (ZA) constitutive model for BCC materials and a combined strength-strain model of fracture, a physics model suitable for predicting the fracture toughness transition behavior of ferritic steels has been developed. The model predicts an exponential dependence...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2004
ISBN-10: 0-8031-3472-X
ISBN: 978-0-8031-3472-0
... associated with calculating σ ref could be as much as ±40% whereas for the stress intensity K it is about ±10%. The σ ref values are used to calculate C * using the mean properties of a base 316LN type stainless steel plate tested at 650 °C and a cross-weld P22 circumferentially welded pipe tested...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2878-9
ISBN: 978-0-8031-2878-1
... Embrittlement of low-alloy steel components used in the nuclear power industry is classified into hardening embrittlement and non-hardening embrittlement. Hardening embrittlement stems from precipitation of carbides or copper-rich compounds. Non-hardening embrittlement results mainly from grain...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2864-9
ISBN: 978-0-8031-2864-4
... Applying an electron beam weld (EBW) at the base of the notch has modified Charpy test specimens to provide a reduced scatter, sharper transition, higher upper-shelf energy and higher transition temperature for tough, high-strength steels. The procedure considerably improves determination...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2865-7
ISBN: 978-0-8031-2865-1
... performed to evaluate the effects of overloads on the fatigue life of smooth tubes constructed of normalized SAE 1045 steel. Five strain ratios were investigated, including uniaxial (λ = ε xy /ε xx = 0), pure torsion (λ = ∞), and three intermediate ratios (λ = 3/4, 3/2, and 3). Periodically applied...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2025-7
ISBN: 978-0-8031-2025-9
... provided considerations associated wim the interpretation of the crevice corrosion test results. general corrosion localized corrosion seawater brine ultra pure water stainless steels 70/30 CuNi crevice geometry in-plant testing sheet material tube material Robert M. Kain,1Wayne L...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-1882-1
ISBN: 978-0-8031-1882-9
... A method is described for modelling the stochastic variability of toughness data for ferritic steels in the brittle to ductile transition regime. The present model is based on two ingredients: a weakest link approach using Weibull statistics with a suitable modification to include the effect...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-2013-3
ISBN: 978-0-8031-2013-6
... Constraint and statistical models were applied to fracture toughness data in the transition for steels to determine to what extent either or both are required to deal with size and geometry effects in the transition. A Weibull model was used for statistical adjustment to try to remove size...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1867-8
ISBN: 978-0-8031-1867-6
... The geometry dependence of several potential criteria for the onset of ductile fracture in tension tests was investigated for a modern tremethylcyclopentanone (TMCP) line pipe steel using an experimental/numerical approach. Large-strain finite-element simulations were used to estimate the state...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1484-2
ISBN: 978-0-8031-1484-5
..., a microconstituent that we term granular ferrite has been documented. Finally, the effect of tempering on the martensite in the base plate has been examined. As soon as they are observable, the copper (Cu) precipitates can be identified as face-centered cubic (fcc) ε-Cu. steels martensite granular bainite...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1440-0
ISBN: 978-0-8031-1440-1
... specimens. An example of how the fatigue crack growth prediction methods could be applied to the design of welded joints is presented. fatigue (materials) fracture mechanics finite elements line spring method welds steels offshore structures tubular connections David Ritchie, 1 Cees W. M...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1469-9
ISBN: 978-0-8031-1469-2
... and probe position local to the growing crack. Analytical calibrations are experimentally confirmed for small through-thickness edge cracks, surface semielliptical and semicircular cracks, and corner cracks in steels, nickel-based super-alloys, titanium and aluminum alloys. Micron-level average crack...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1429-X
ISBN: 978-0-8031-1429-6
... Crack-tip opening displacement (CTOD) measurements were made 100 üm behind the crack tip on standard three-point bend specimens using a laser-based interferometric technique. Four materials (SAE-01 steel, 4340 steel, HY-100 steel, and tungsten) were tested at loading rates ranging from quasi...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1399-4
ISBN: 978-0-8031-1399-2
... Continuously cast steel often exhibits a nonhomogeneous composition resulting from elemental segregation during solidification. Concentrated regions of phosphorus, carbon, sulfur, manganese and other elements can have detrimental effects on properties. At present, measurement of segregation...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1418-4
ISBN: 978-0-8031-1418-0
... curve of 12.7 mm (0.5 in.) thick specimens of HY-100 steel was investigated. Specimen blanks were deformed in four-point bending to two different levels of deflection prior to machining the starter notch. The resulting residual stress field in a companion test specimen was measured on side surfaces...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1418-4
ISBN: 978-0-8031-1418-0
... Fracture toughness testing of steels in the ductile-to-brittle transition region is complicated by a high degree of data scatter. Variations in the amount of ductile tearing prior to cleavage initiation often accompany the data scatter. Dynamic toughness testing is shown to be experimentally...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1458-3
ISBN: 978-0-8031-1458-6
... The mechanism by which chlorides initiate corrosion is by locally breaking down the passive film which forms on steel in the highly alkaline concrete pore solution. However, the breakdown of passivity requires a certain concentration of chlorides. The aim of the project described in the paper...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1458-3
ISBN: 978-0-8031-1458-6
... The polarization resistance method was used to measure the corrosion rate of steel bars embedded in mortar specimens. The measurements were carried out on specimens, with different percentages of blast furnace slags (0, 20, 45, and 75% weight relative to the weight of cement). During the first...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1458-3
ISBN: 978-0-8031-1458-6
..., the limitations and the improvements of the proposal are discussed. residual service life prediction corrosion intensity deterioration levels corrosion steels concrete Carmen Andrade, 1 Maria Cruz Alonso, 1 and JosO Antonio Gonzalez 2 An Initial Effort to Use the Corrosion Rate Measurements...