...LG Garza; CJ Van Tyne A Digital Image Processing (DIP) technique was used to quantify the hot-shortness cracking in a medium carbon steel with variations in copper content, oxidation temperature, and oxidation time. The DIP method was an automated and easily-implemented technique, which resulted...

... be applied “nondestructively” to operating components. Results are presented on a range of steels. 10 03 1994 27 06 1994 fracture toughness small punch testing disk bend continuum toughness steels fracture appearance transition temperature (FATT) References Viswanathan , R...

...JA Martínez; HP Kugler; S Merino; H Drude; AJ Criado A comparative study was made of the mechanical behavior of the different zones in a welded joint of hypoeutectoid steel, using the uniaxial tension test supported by other conventional techniques. Applying the optoelectronic method to recording...

... sections for six typical materials for various k values. 05 09 1986 27 08 1987 low cycle fatigue axial fatigue bending fatigue plastic flow Manson-Coffin law steels aluminum cross-sectional shape/geometry References Manson , S. S. , “ Fatigue: A Complex Subject—Some...

...TK Betancourt; JR Matthews This paper analyzes the effects of the data averaging increment (Δ C ) on the prediction of mean life cycles in 25-mm. (1-in.)-thick HY-80 steel plate using CT test specimens. The analysis shows that the crack propagation in this steel plate is not uniform; the crack rate...

...M Kurita; I Ihara; M Shinbo; H Koguchi An X-ray diffraction line will broaden considerably when steels transform to martensite on quenching. Slack quenched steels contain a mixed martensite and fine pearlite structure which produces an anomalous diffraction line profile with a sharp peak...

... specimens are somewhat higher. It is suggested that the arrested cleavage crack tip is a more potent flaw than the fatigue precrack. fracture tests steels cleavage statistics fracture toughness References Cheverton , R. D. , Gehlen , P. C. , Hahn , G. T. , and Iskander , S. K...

...KD Moore; PL Jones Dopper broadening measurements of the gamma-ray spectra produced by positron annihilation have been made on an AISI 4340 (Unified Numbering System [UNS] G43400) steel as a function of both isochronal tempering over the temperature range of 150 to 700°C and isothermal tempering...

...NS Berke; HE Townsend Results of the Deutsches Institut für Normung (DIN) Kesternich sulfur dioxide test (DIN 50018) are compared with those of long-term industrial atmospheric exposure tests of sheet steels coated with zinc, aluminum, and Al-Zn alloy coatings. According to the Kesternich test...

...RL Plaut; CM Sellars High strain rate hot tension tests have been carried out on AISI 1020 (Unified Numbering System [UNS] G10200) steel using a Gleeble® testing machine. Tests have been terminated at a series of strains and the specimen geometries measured. From these measurements, local areas...

...P Doig; KR Abbott The direct current electrical potential method for monitoring of crack length during fracture toughness J Ic testing of low strength steels using the crack resistance curve approach is described. The experimental precautions and data processing procedure required for its...

... will analyze unknown samples with the same accuracy as older instruments that used hand-drawn curves. KEY-WORDS: computers, spectrochemical analysis, steels, accurate spectrochemical analyses, computer-calibrated spectrometers, higher order polynomials,theoreticalcurve shapes, interferencecorrections Recently...

... of that required in the half-width determination. The line width represented by the parameter of various quenched and tempered steels increases with increasing hardness. Hence, the use of the parameter allows a rapid and nondestructive estimation of hardness of hardened steels. Masanori Kurita I and Hideo Hirayama...

... steel St E 460 (nickel-vanadium) at room temperature are presented together with two- and three-dimensional finite element calculations for some of these specimens. The overall specimen behavior including J for the 10-mm-thick specimens is reproduced by a plane stress model. Even the 40-mm-thick...

...RA Cutler; WC Leslie The fracture toughness of steels with good retention of hardness at elevated temperatures (CarTech EX00053, Timken CBS 600 and 1000M, and Vasco X-2M) was compared with that of conventional carburizing steels (EX55, AISI 4820, 8620, and 9315). The short-rod method was used...

...JF Sovak Fracture toughness data were obtained for three constructional alloy steels having yield strengths of 958, 752, and 552 MPa (139, 109, and 80 ksi) (HY-130, A517(F) [Unified Numbering System UNS K11576], and HY-80, respectively) by testing conventional Charpy V-notch (CVN), fatigue...

...KP Datta; WE Wood The toughness of quenched 4340 steel (American Iron and Steel Institute designation) has been studied as a function of notch root radius and tempering temperature for several testing conditions (such as room temperature slow-bend Charpy, room temperature instrumented Charpy...

...MM Cobanoglu; G Kardos This study compares various test methods and estimation procedures that are available for determining the fracture toughness of steels. The ASTM Test for Plane-Strain Fracture Toughness of Metallic Materials (E 399), the energy rate test, and the multiple identical specimen...

...GG Trantina A statistical fatigue failure analysis based on the Weibull weakest link concept is described and applied to notched and smooth specimen data to provide an interpretation of the size effect in fatigue results for SAE 4340 steel. The technique of predicting component lifetimes...

... tested to determine what possible differences exist between side grooved specimens and specimens not side grooved specimens. While the slope of the crack growth resistance (R) lines were different for the two geometries, the J Ic values were essentially the same. steels fracture tests cracking...