Offset Yield Strength

2011 ◽  
pp. 500-500
Author(s):  
Jan W. Gooch
Keyword(s):  
Yield Strength ◽  
Offset Yield Strength

SCAIFE MX-2

Alloy Digest ◽  
1961 ◽  
Vol 10 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength Steel ◽  
High Strength ◽  
Heat Treating ◽  
Offset Yield Strength ◽  
Ultra High Strength Steel

Abstract Scaife MX-2 is a cobalt modified Type 4140 ultra-high strength steel having high multiaxial capabilities at the 225,000 to 235,000 psi (0.2% offset) yield strength levels. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-116. Producer or source: Scaife Company.

Finite Strain and the 0.01 Percent Offset Yield Strength

1973 ◽  
Vol 1 (5) ◽  
pp. 412 ◽  
Author(s):  
ST Etris ◽  
KC Lieb ◽  
VK Sisca ◽  
IC Moore ◽  
AL Batik ◽  
...  
Keyword(s):  
Yield Strength ◽  
Finite Strain ◽  
Offset Yield Strength

scholarly journals Rapidly Solidified Aluminium Alloy Composite with Nickel Prepared by Powder Metallurgy: Microstructure and Self-Healing Behaviour

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4193 ◽  
Author(s):  
Alena Michalcová ◽  
Anna Knaislová ◽  
Jiří Kubásek ◽  
Zdeněk Kačenka ◽  
Pavel Novák
Keyword(s):  
Yield Strength ◽  
Intermetallic Phases ◽  
Ultimate Tensile Stress ◽  
Self Healing ◽  
Offset Yield Strength ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Pass Through ◽  
Rapidly Solidified ◽  
Al Matrix

Composite material prepared by spark plasma sintering (SPS) from a powder mixture of AlCrFeSi rapidly solidified alloy and 5 wt. % of Ni particles was studied in this work. It was proven that during SPS compaction at 500 °C, no intermetallic phases formed on the surface of Ni particles. The material exhibited sufficient mechanical properties obtained by tensile testing (ultimate tensile stress of 203 ± 4 MPa, ductility of 0.8% and 0.2% offset yield strength of 156 ± 2 MPa). Tensile samples were pre-stressed to 180 MPa and annealed at 450 and 550 °C for 1 h. Annealing at 450 °C did not lead to any recovery of the material. Annealing at 550 °C caused the full recovery of 0.2% offset yield strength, while the ductility was decreased. The self-healing behaviour originates from the growth of intermetallic phases between the Ni particle and the Al matrix. The sequence of NiAl, Ni2Al3 and NiAl3 intermetallic phases formation was observed. In particular, the morphology of the NiAl3 phase, growing in thin dendrites into the Al matrix, is suitable for the closing of cracks, which pass through the material.

Experimental characterization of the mechanical properties of 3D-printed ABS and polycarbonate parts

2017 ◽  
Vol 23 (4) ◽  
pp. 811-824 ◽  
Author(s):  
Jason T. Cantrell ◽  
Sean Rohde ◽  
David Damiani ◽  
Rishi Gurnani ◽  
Luke DiSandro ◽  
...  
Keyword(s):  
Yield Strength ◽  
Shear Modulus ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Experimental Characterization ◽  
Shear Testing ◽  
Content Type ◽  
Offset Yield Strength ◽  
3D Printed

Purpose This paper aims to present the methodology and results of the experimental characterization of three-dimensional (3D) printed acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) parts utilizing digital image correlation (DIC). Design/methodology/approach Tensile and shear characterizations of ABS and PC 3D-printed parts were performed to determine the extent of anisotropy present in 3D-printed materials. Specimens were printed with varying raster ([+45/−45], [+30/−60], [+15/−75] and [0/90]) and build orientations (flat, on-edge and up-right) to determine the directional properties of the materials. Tensile and Iosipescu shear specimens were printed and loaded in a universal testing machine utilizing two-dimensional (2D) DIC to measure strain. The Poisson’s ratio, Young’s modulus, offset yield strength, tensile strength at yield, elongation at break, tensile stress at break and strain energy density were gathered for each tensile orientation combination. Shear modulus, offset yield strength and shear strength at yield values were collected for each shear combination. Findings Results indicated that raster and build orientations had negligible effects on the Young’s modulus or Poisson’s ratio in ABS tensile specimens. Shear modulus and shear offset yield strength varied by up to 33 per cent in ABS specimens, signifying that tensile properties are not indicative of shear properties. Raster orientation in the flat build samples reveals anisotropic behavior in PC specimens as the moduli and strengths varied by up to 20 per cent. Similar variations were observed in shear for PC. Changing the build orientation of PC specimens appeared to reveal a similar magnitude of variation in material properties. Originality/value This article tests tensile and shear specimens utilizing DIC, which has not been employed previously with 3D-printed specimens. The extensive shear testing conducted in this paper has not been previously attempted, and the results indicate the need for shear testing to understand the 3D-printed material behavior fully.

scholarly journals Change of Specimen Temperature during the Monotonic Tensile Test and Correlation between the Yield Strength and Thermoelasto-Plastic Limit Stress on the Example of Aluminum Alloys

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 13
Author(s):  
Adam Lipski
Keyword(s):  
Yield Strength ◽  
Tensile Test ◽  
Tensile Tests ◽  
Plastic Limit ◽  
Temperature Changes ◽  
Offset Yield Strength ◽  
Specimen Temperature ◽  
Thermographic Camera ◽  
Chatelier Effect ◽  
Limit Stress

This paper presents an attempt to generalize the description of the course of specimen temperature changes during the tensile test and to connect the value of the thermoelasto-plastic limit stress with the value of a clear (physical) or proof strength (offset yield strength) on the example of tests of the following aluminum alloy sheets used in Poland for airplane structures: 2024-T3 and D16 in three grades: D16ATV, D16CzATV, and D16UTV. A thermographic camera was used for specimen surface temperature measurement during the tensile test. The Portevine–Le Chatelier effect (the so-called PLC effect) was observed for tests of specimens cut from sheet plates, which was strongly reflected in the temperature fluctuations. The course of temperature change during tensile tests was divided into four characteristic stages related to the occurrence of a clear or offset yield strength. It was found that if there is a clear yield strength, the value of the thermoelasto-plastic limit stress was greater than this yield strength. If there was an offset yield strength, the value of the thermoelasto-plastic limit stress was lower than this yield strength. The differences in the aforementioned values of individual yield strengths did not exceed several percent. Thus, it can be concluded that the thermoelasto-plastic limit stress determined on the basis of the course of specimen temperature changes during the tensile test is well correlated with the value of the yield strength of the material.

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