improvement of strength ductility balance of b2

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Improvement of strength 鈥 ductility balance of B2

Improvement of strength 鈥 ductility balance of B2

Improvement of strength 鈥 ductility balance of B2 As a result, the present steel shows an ultrahigh yield strength of 1.6 GPa after aging, which is mainly due to the presence of fine B2 particles within austenite grains and along grain boundaries as well as the additional strengthening effect of nano-sized 魏-carbide and D0 3 particles present in austenite grains and B2 particles, respectively. The steel possesses good ductility (total sp.info Improvement of strength 鈥 ductility balance of B2 The main purpose is to acquire refined and homogeneously distributed B2 and 魏-carbide simultaneously so as to improve the strength鈥揹uctility balance.sp.info Effect of B2 morphology on the mechanical Aging treatment further increases yield strength of both A2 and A15 specimens (154 -183 MPa) without a significant loss in ductility (4 -5%). Improvement of strength 鈥 ductility balance ofsp.info Precipitation behavior of B2 and 魏-carbide during


			
Unique strength-ductility balance of AlCoCrFeNi2.1

Unique strength-ductility balance of AlCoCrFeNi2.1

In this study, selective laser melting (SLM) was introduced into the preparation of AlCoCrFeNi 2.1 EHEA to realize unique strength-ductility balance, with emphasis on investigating the effects of processing parameters on its eutectic microstructure and properties. The results show that the SLM-ed samples exhibit a completely eutectic structure consisting of ultra-fine face-centered sp.info Improvement of room and high temperature tensile Jun 13, 2018 · In order to improve the room and high temperature strength鈥揹uctility balance of ferritic Fe-Al-Ni based alloys strengthened by the B2-type NiAl precipitates, Fe-Al-Ni-Cr-Mo alloys was developed. The microstructures and tensile properties of sp.info Improvement of strength, toughness and ductility in Jun 01, 2020 · However, steel becomes brittle (high strength, low ductility, low toughness) when it is hard, and it becomes ductile (low strength, high ductility, high toughness) when it is soft. As shown in Fig. 14, the RA varies greatly depending on sp.info Nack KIM Pohang University of Science and Improvement of strength 鈥 ductility balance of B2-strengthened lightweight steel. and deformation mechanisms related with improvement of dynamic tensile properties were investigated by a


			
Frontiers Microstructures and Mechanical

Frontiers Microstructures and Mechanical

Dec 21, 2021 · Improvement of Strength - Ductility Balance of B2-Strengthened Lightweight Steel. Acta Materialia 191, 1鈥12. doi:10.1016/j.actamat.2020.03.022 CrossRef Full Text sp.info Enhanced strength鈥揹uctility synergy in ultrafine-grained Jan 30, 2019 · Given the energy-efficient improvement and large safety factors, the attainment of high strength and high ductility in materials is arguably sp.info Unique strength-ductility balance of AlCoCrFeNi2.1 Request PDF Unique strength-ductility balance of AlCoCrFeNi2.1 eutectic high entropy alloy with ultra-fine duplex microstructure prepared by selective laser melting sp.info Phase鈥怱pecific Precipitation of Intermetallic Phases in Fe A four phase equilibrium comprising of ferrite, austenite, 魏鈥恜hase (Fe 3 AlC), and B2鈥恜hase (NiAl) is stabilized in a suitable annealing window. The processing conditions are adjusted according to elemental partitioning and consequential stabilization


			
Alireza ZARGARAN PostDoc Position PhD Pohang

Alireza ZARGARAN PostDoc Position PhD Pohang

Its role in increasing strength and ductility at room temperature (298 K) is a known phenomenon. In this work, we have shown that the cellular dislocation structure not only improves the strengthsp.info Effect of severe cold-rolling and annealing on The possibility of microstructural refinement and improvement of mechanical properties by severe cold-rolling was investigated in an AlCoCrFeNi 2.1 lamellar eutectic high entropy alloy (EHEA). The as-cast alloy revealed fine scale eutectic mixture of L1 2 (ordered FCC) and B2 (ordered BCC) phases. During severe cold-rolling up to 90% reduction in thickness the B2 sp.info Nano-mechanical properties of Fe-Mn-Al-C lightweight Jun 13, 2018 · Increasing the annealing temperature led to significant improvement of the strength-ductility balance in both the grades due to the removal of 魏 -carbides and the formation of nano-sized B2 diskssp.info Improved Strength-Ductility of Ti-6Al-4V Casting Alloys Nov 24, 2020 · In this work, a high strength鈥揹uctility Ti64 cast alloy, containing trace TiC-TiB2 nanoparticles, was fabricated by adding dual-phased nano-TiC-TiB2/Al master alloys to the molten Ti64 alloys. The trace addition of the TiC-TiB2 nanoparticles (0.1 wt%) simultaneously reduced the size of the 尾 grains, the 伪 laths, and the α colony size of the lamellar


			
Microstructures and mechanical properties of Ta鈥揘b鈥揨r鈥揟i

Microstructures and mechanical properties of Ta鈥揘b鈥揨r鈥揟i

Jul 29, 2021 · The refractory high entropy alloys (RHEAs) containing disordered body-centered cubic (BCC) and ordered BCC (B2) structures often exhibit high strength but low ductility at room temperature, even in the compressive tests. In this study, (Ta25-xNb25Zr25Ti25+x)95Al5 (x = 0, 5, 10) RHEAs are fabricated to investigate the compositional dependence of the sp.info Microstructures and Mechanical Properties of Annealed Fe The cold-rolled Fe-8Mn-6Al-0.4C duplex low-density steel was annealed at different conditions to obtain ferrite + austenite duplex microstructure. The excellent mechanical properties (i.e., elongation of 52%, tensile strength of 785 MPa, and a product of tensile strength and elongation of 40.9 GPa·%) have been obtained by adjusting the volume fraction and the stability of sp.info Microstructural Design for Improving Ductility of An Jun 11, 2018 · The goal was successfully achieved and an improved balance of high strength and good compressive ductility was demonstrated by 鈥渋nverting鈥 the microstructure from a continuous B2 matrix with sp.info Significant Contribution to Strength Enhancement from Mar 15, 2019 · The U.S. Department of Energy's Office of Scientific and Technical Information


			
Materials Free Full-Text Molecular Dynamics Study on

Materials Free Full-Text Molecular Dynamics Study on

Dec 16, 2021 · Cu鈥揝n alloy is one kind of traditional copper alloy, which has high hardness, strength, wear resistance, corrosion resistance and good ductility and is widely used in mechanical manufacturing, such as wear-resistant, corrosion-resistant, high-strength load bearing parts [1,2,3].Due to the reliability demand of bearing parts, which require excellent sp.info MICROSTRUCT`URE ENGINEERING FOR OPTIMIZING But the poor ductility at ambient temperature and a sharp drop in strength at 600"C greatly hinder its development for commercial use. From the 1940's to 80's, considerable work has been devoted to improvement of the room temperature ductility of iron aluminides, but no magnificent progress was made, the best elongation was about 4-6%[2,3].sp.info Novel NiAl-strengthened high entropy alloys with balanced Nov 13, 2018 · The U.S. Department of Energy's Office of Scientific and Technical Informationsp.info Materials Free Full-Text Effect of Mo on the Jan 19, 2022 · The volume fraction of the B2-type NiAl precipitate is higher than 30%, and it can sustain high strength at high-temperature. Meanwhile, the Al 0.4 CrFe 1.5 MnNi 0.5 Mo 0.1 shows higher yield strength than the Al 0.4 CrFe 1.5 MnNi 0.5, and this is due to the precipitation hardening by 蟽 phase.


			
Buildings Free Full-Text Structural Efficiency of Non

Buildings Free Full-Text Structural Efficiency of Non

The compressive strength of concrete was chosen as an important parameter due to its direct role in governing the performance of the beam section. Numerical analyses on ten additional RC beams were conducted as shown in Table 7. The selected compressive strength values were 26.63, 42.00 and 55.00 MPa, respectively.sp.info

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