Search Results - "Tian, Y.Z."

Simultaneous improvement of strength and plasticity: Additional work-hardening from gradient microstructure by Shao, C.W., Zhang, P., Zhu, Y.K., Zhang, Z.J., Tian, Y.Z., Zhang, Z.F.

“…Enhancing strength-ductility synergy of materials has always been a hot but difficult topic in material science, for most structural materials, steels in…”
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Enhanced strength and ductility of bulk CoCrFeMnNi high entropy alloy having fully recrystallized ultrafine-grained structure by Sun, S.J., Tian, Y.Z., Lin, H.R., Dong, X.G., Wang, Y.H., Zhang, Z.J., Zhang, Z.F.

“…A high efficient magnetic levitation melting technique was reported for fabricating bulk equiatomic CoCrFeMnNi high-entropy alloy (HEA) ingot with a diameter…”
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Fatigue behavior of CoCrFeMnNi high-entropy alloy under fully reversed cyclic deformation by Tian, Y.Z., Sun, S.J., Lin, H.R., Zhang, Z.F.

“…Bulk ultrafine-grained (UFG) CoCrFeMnNi high-entropy alloy (HEA) with fully recrystallized microstructure was processed by cold rolling and annealing…”
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Exploring the fatigue strength improvement of Cu-Al alloys by Liu, R., Tian, Y.Z., Zhang, Z.J., Zhang, P., An, X.H., Zhang, Z.F.

“…As a significant scientific problem directly impacting on the long-term safety of engineering materials and facilities, the improvement of fatigue strength…”
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Temperature dependence of the Hall–Petch relationship in CoCrFeMnNi high-entropy alloy by Sun, S.J., Tian, Y.Z., Lin, H.R., Dong, X.G., Wang, Y.H., Wang, Z.J., Zhang, Z.F.

“…Single-phase equiatomic CoCrFeMnNi high-entropy alloy (HEA) specimens with three different grain sizes (0.65 μm, 2.1 μm and 105 μm) were processed by cold…”
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Nano-scale precipitates: The key to high strength and high conductivity in Al alloy wire by Hou, J.P., Wang, Q., Zhang, Z.J., Tian, Y.Z., Wu, X.M., Yang, H.J., Li, X.W., Zhang, Z.F.

“…Outstanding mechanical and conductive properties are vital to Al alloys used as overhead conductors. However, high strength and high electrical conductivity…”
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Revealing the mechanical properties and microstructure evolutions of Fe–22Mn–0.6C–(x)Al TWIP steels via Al alloying control by Yang, H.K., Tian, Y.Z., Zhang, Z.F.

“…Three kinds of Fe–22Mn–0.6C–(x)Al (wt%) Twinning-Induced Plasticity (TWIP) steels were designed by changing the Al content. Uniaxial, unloading-reloading and…”
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Post treatment of an additively manufactured composite consisting of 304L stainless steel and CoCrFeMnNi high-entropy alloy by Yang, Y., Hu, J., Liu, X.Y., Xu, W., Li, B., Ling, G.P., Pang, X.Y., Tian, Y.Z.

“…Laminated composite consisting of 304L stainless steel and CoCrFeMnNi high-entropy alloy (HEA) are prepared by additive manufacturing technology. Apparent…”
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Negative to positive transition of strain rate sensitivity in Fe-22Mn-0.6C-x(Al) twinning-induced plasticity steels by Yang, H.K., Zhang, Z.J., Tian, Y.Z., Zhang, Z.F.

“…In this study, it is found that the high-manganese austenitic FeMnC twinning-induced plasticity (TWIP) steel exhibits negative strain rate sensitivity (SRS),…”
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Microstructural evolution and mechanical properties of a two-phase Cu–Ag alloy processed by high-pressure torsion to ultrahigh strains by Tian, Y.Z., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…Disks of a coarse-grained Cu–28 wt.% Ag alloy were processed by high-pressure torsion up to 20 revolutions to reveal the microstructural evolution and…”
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Microstructures, strengthening mechanisms and fracture behavior of Cu–Ag alloys processed by high-pressure torsion by Tian, Y.Z., Li, J.J., Zhang, P., Wu, S.D., Zhang, Z.F., Kawasaki, M., Langdon, T.G.

“…Disks of a eutectic Cu–Ag alloy were processed by high-pressure torsion (HPT) up to 20 revolutions to reveal the microstructural evolution and mechanical…”
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Comparison of microstructures and mechanical properties of a Cu–Ag alloy processed using different severe plastic deformation modes by Tian, Y.Z., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…► The microstructures of the Cu–Ag alloy can be refined to different levels by these SPD modes and the highest strength of 1.1 GPa was obtained by HPT after 5…”
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Direct observations of microstructural evolution in a two-phase Cu–Ag alloy processed by high-pressure torsion by Tian, Y.Z., An, X.H., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…Disks of a coarse-grained Cu–28 wt.% Ag alloy were processed by high-pressure torsion, and the decorative eutectic regions were used to reveal the evolution of…”
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Formation of nanostructure and abnormal annealing behavior of a Cu–Ag–Zr alloy processed by high-pressuretorsion by Tian, Y.Z., Freudenberger, J., Pippan, R., Zhang, Z.F.

“…A bulk Cu–Ag–Zr alloy was processed by high-pressure torsion (HPT) up to 20 revolutions. The microstructure and microhardness of these deformed samples were…”
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Strain hardening behavior of a two-phase Cu–Ag alloy processed by high-pressure torsion by Tian, Y.Z., Wu, S.D., Zhang, Z.F., Figueiredo, R.B., Gao, N., Langdon, T.G.

“…Disks of a coarse-grained Cu–28 wt.% Ag alloy and pure Cu were processed by high-pressure torsion and the microhardness was investigated as a function of the…”
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Remarkable transitions of yield behavior and Lüders deformation in pure Cu by changing grain sizes by Tian, Y.Z., Gao, S., Zhao, L.J., Lu, S., Pippan, R., Zhang, Z.F., Tsuji, N.

“…Fully recrystallized ultrafine-grained (UFG) pure Cu specimens were fabricated by high-pressure torsion (HPT) and controlled annealing. The recrystallized UFG…”
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Quantifying the strengthening effect of stacking faults in a nonequiatomic CoCrNi alloy by Ni, Z.Y., Li, Z.Y., Peng, S.Y., Tian, Y.Z.

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Achieving high ductility at medium temperature in a nonequiatomic CoCrNi alloy by Zhang, Q., Peng, S.Y., Tian, Y.Z.

“…The tensile strength and ductility of face-centered cubic (FCC) multi-principal element alloys (MPEAs) typically decline monotonically with increasing…”
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Transition of twinning behavior in CoCrFeMnNi high entropy alloy with grain refinement by Sun, S.J., Tian, Y.Z., Lin, H.R., Yang, H.J., Dong, X.G., Wang, Y.H., Zhang, Z.F.

“…Fully recrystallized CoCrFeMnNi high entropy alloys (HEAs) with different grain sizes ranging from 503nm to 88.9µm were fabricated by cold rolling and…”
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Optimizing the strength-ductility balance of microalloyed Al-Mg-Si casting alloys by Luo, T.R., Fan, Z.Z., Hu, H.X., Tian, Y.Z.

“…•As-cast 6 Mg and 8 Mg alloys show distinct mechanical responses by heat treatment.•The as-cast 6 Mg alloy possessed strength of 284.5 MPa and ductility of…”
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