High strain rate superplasticity
WebJun 1, 2024 · Ultrahigh high-strain-rate superplasticity in a nanostructured high-entropy alloy Ultrahigh high-strain-rate superplasticity in a nanostructured high-entropy alloy … Web6. T. D. Wang and J. C. Huang, “Analysis on High Strain Rate Superplasticity in 6061/1% Nano SiO 2”, Proc. Workshop between Mainland China and Taiwan on Ceramic and Metal Composites, Chinese Society for Materials Science, Taichung, 2001, p. 20. 7. J. C. Huang, “Recent Achievement in Developing Low Temperature and High Strain Rate
High strain rate superplasticity
Did you know?
WebNov 25, 2024 · The processed materials exhibited high resistance at room temperature and excellent superplasticity at the high strain rate of 10 −2 s −1 and temperatures between … Webgation of 380% at 793K and at a high strain rate of Figure 1 (a) SEM micrograph and (b) TEM micrograph of as-extruded PM Al-16Si-5Fe based alloy. ... mechanism of superplasticity. The rapidly solidified Al-16Si-5Fe alloy powders ... tial strain rate ranges from 1.4£10 ¡4 to 7£10 1 s¡1 at 723, 783 and 793 K. The specimen was heated with
WebFeb 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. WebThe plastic strain rate is given by. (16.13) where λ is the plastic multiplier, and ψ is the direction of the strain increment derived from the plastic potential. An associated model …
WebSep 15, 2024 · An unusually high strain rate sensitivity, m, of 0.43 ± 0.02 was obtained by using nanoindentation creep test in the same temperature region, indicating that superplasticity can be expected at low temperatures. Samples were deformed by tension at different strain rates and different temperatures lower than 0.5 × Tm. 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.
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 …
WebApr 8, 2024 · The investigation of the superplastic behavior of HEAs is significant since superplastic forming shows a great potential in fabricating complex compon… top rated pajama pants for menWebNov 7, 2024 · The results reveal that the uniform fine-grained GH4151 alloy exhibited an excellent superplasticity and high strain rate sensitivity (exceeded 0.5) under all experimental conditions. It was found that the increase of strain rate resulted in an increased average activation energy for superplastic deformation. A maximum elongation … top rated pakistani dramas series 2016WebSep 20, 2001 · High-strain-rate superplasticity describes the ability of a material to sustain large plastic deformation in tension at high strain rates of the order of 10 -2 to 10 -1 s -1 … top rated painters vanWebDec 21, 2015 · High carbon fine-grained (FG) steels (containing 1–2% C in weight %) were observed to exhibit superplasticity at 0.5–0.65 Tm and strain rate of ~10 −4 –10 −3 s 20,21. top rated palfish profilesWebDec 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}. top rated paleo cookbooksWebDec 21, 2024 · Superplasticity is characterized by an elongation to failure of >300% and a measured strain rate sensitivity (SRS), close to 0.5. The superplastic flow is controlled by … top rated paleo cookbookWebSuperplasticity 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 alloys. top rated paleo meal programs