High strain rate superplasticity
WebApr 12, 2014 · This strain rate is generally defined as the point of transition to high strain rate superplasticity . For many years, the development of superplasticity in SPD materials was devoted almost exclusively to metals processed by ECAP. The reason is due to the relatively large samples that are easily produced using the ECAP method. WebAug 23, 2024 · The largest superplasticity (ΔL/L 0 > 1100%) is obtained at about 800 °C and at strain rate of 10 −3 s −1, which is related to m value of 0.38–0.52. Our experimental results show that dynamic...
High strain rate superplasticity
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WebJan 5, 2024 · High-strain-rate superplasticity (HSRS) is observed at temperature of 573–723 K. A maximum elongation of 1205% is obtained at 1 × 10 −2 s −1 and 673 K. The … WebDec 31, 1997 · High strain rate superplasticity (HSRS) has been investigated at 600-650 C and strain rate of 10 {sup -3}-10 {sup 0} sec {sup -1} in tension, and total elongation of 300 - 500% was observed at strain-rate of 10 {sup -1} sec {sup -1}.
WebJul 15, 1995 · High strength and high strain rate superplasticity in a Mg-Mg {sub 2}Si composite Full Record Related Research Abstract Magnesium alloys have high potential as structural materials because of low density. Recently, it was shown that magnesium composite containing. WebUltra fine-grained metals can show exceptional ductility, known as superplasticity, during sheet forming. The higher ductility of superplastic metals makes it possible to form large and complex components in a single operation without joints or rivets. The result is less waste, lower weight and manufacturing costs, high precision and lack of residual stress …
The properties of ceramic materials, like all materials, are dictated by the types of atoms present, the types of bonding between the atoms, and the way the atoms are packed together. This is known as the atomic scale structure. Most ceramics are made up of two or more elements. This is called a compound. For example, alumina (Al2O3), is a compound made up of aluminium atoms and oxygen atoms. WebJul 26, 2024 · The specimens for the constant strain rate high-temperature tensile tests were cut from the received material by a Wire Cut Electrical Discharge Machining ... Wang, C.; Dong, H.; Weng, Y. Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential. Sci. Rep. 2024, 7, …
WebJun 1, 2024 · Superplasticity describes a material’s ability to sustain large plastic deformation in the form of a tensile elongation to over 400% of its original length, but is generally observed only at a...
WebJun 28, 2024 · They possess high-strain-rate sensitivity “m” value, approximately, equal to 0.5 at the temperature of 0.5 times the melting point and at a strain rate of 10−3 to 10−4 s−1. Ultrafine grains (100 nm to less than 1 μm) exhibit superplasticity at high strain rate as well as at low temperature when compared to fine grain materials. crypto news and analysisWebHigh Strain Rate Superplasticity High-Strain-Rate Superplasticity. High-strain-rate superplasticity (HSRS) refers to the superplasticity achieved at an... Superplasticity. … crypto news and researchWebSep 1, 2024 · During high-strain-rate superplastic deformation, superplasticity indices, and the microstructure of two Al–Zn–Mg–Cu–Zr alloys with additions of nickel and iron, which contain equal volume fractions of eutectic particles of Al3Ni or Al9FeNi, have been compared. It has been shown that the alloys exhibit superplasticity with 300–800% … cryptotools.buildWebOct 1, 1992 · Although the number of ceramics exhibits superplasticity is now quite large, there are gaps in understanding the requirements for superplasticity in ceramics. Also, superplastic behavior at very high strain rates (1 s {sup {minus}1}) in metallic-based materials is an area of increasing research. crypto news and eventsWebUltra fine-grained metals can show exceptional ductility, known as superplasticity, during sheet forming. The higher ductility of superplastic metals makes it possible to form large and complex components in a single operation without joints or rivets. The result is less waste, lower weight and manufacturing costs, high precision and lack of residual stress … cryptotools/initenvWebFeb 1, 1999 · Based on the obtained results, the role of the liquid phase in the high-strain-rate superplasticity is discussed. The sample was Al-Mg (5052) alloy reinforced with 20vol% Si 3 N 4 particles, fabricated by a powder metallurgy process. The sample showed an excellent superplasticity under the conditions given in Table 1. cryptotool 2WebSuperplasticity at high strain rates in excess of 10 2 s 1, required for viable industry-scale application, has usually only been achieved in low-strength aluminium and magnesium … cryptotools库