Fuyu Dong
Shenyang University of Technology
Composite numberAmorphous metalDeformation (engineering)Strain rateChemical physicsComposite materialFlow stressTribologyDynamic recrystallizationMetallurgyMaterials scienceDeformation (meteorology)InstabilitySerrationShear bandAlloyAbrasiveSofteningTitanium matrix compositesAtmospheric temperature rangeElastic modulusNanoindentationHydrogenAmorphous solidMolecular dynamicsDuctilityShear matrixPlasticityArrhenius equationMicrostructureStress (mechanics)Titanium alloyActivation energyThermodynamics
18Publications
6H-index
100Citations
Publications 18
Newest
#1Fuyu Dong (SUT: Shenyang University of Technology)H-Index: 6
#2Yuexin Chu (SUT: Shenyang University of Technology)
Last. Robert O. Ritchie (University of California, Berkeley)H-Index: 132
view all 11 authors...
Abstract null null This work intends to manipulate the internal flow units in Zr55Cu30Ni5Al10 bulk-metallic glasses (BMGs) through plasma-assisted hydrogenation to generate a positive microalloying effect on plasticity. Based on the cooperative shear model theory, serration-flow statistics during nanoindentation loading and creep tests during the holding stage were used to analyze the influence of hydrogen on the behavior of flow units in BMGs. Experimental observations showed that the hydrogen ...
Source
#1Xuejian Lin (SUT: Shenyang University of Technology)H-Index: 1
#2Hongjun Huang (SUT: Shenyang University of Technology)H-Index: 5
Last. Xiaojiao Zuo (SUT: Shenyang University of Technology)H-Index: 4
view all 7 authors...
Thermal compression testing was investigated using the Gleeble 3800 thermal simulator, and thermal deformation behavior of particle-reinforced titanium matrix composites (TMCs) was studied under deformation temperatures of 750–900 °C, strain rates of 0.001–1 s−1, and experimental deformation of 60%. According to obtained flow stress curves, the hot deformation characteristics were analyzed. Based on the Arrhenius hyperbolic sinusoidal model, the constitutive equation at high temperature was esta...
Source
Abstract The Ti–48Al–2Cr alloy was subjected to the plasma-hydrogenation treatment. Then the alloy containing minor hydrogen was prepared (0.058 wt percent, wt.%). Hot-compression experiments were carried out at temperatures ranging from 1000 to 1,150 °C and strain rates ranging from 1 to 0.001 s−1. The results show that the peak stress after the plasma-hydrogenation treatment is lower than that of the unhydrogenated one. At 1100 °C and the strain rate of 0.01 s−1, the peak stress is reduced by ...
Source
#1Fuyu Dong (SUT: Shenyang University of Technology)H-Index: 6
#2Yuan Ye (SUT: Shenyang University of Technology)H-Index: 1
Last. Hongjun Huang (SUT: Shenyang University of Technology)H-Index: 5
view all 7 authors...
Abstract The high-temperature deformation mechanisms and processing maps of an equiatomic body-centered-cubic(BCC) structured MoNbHfZrTi refractory high-entropy alloy (RHEA) were studied over the temperatures ranging from 1100 to 1250 °C and different strain rates varying from 10−3 to 0.5 s−1. Flow-stress analyses were performed, using an Arrhenius type relation. The activation energy (Q) for high-temperature deformation was calculated as 326.1 kJ/mol, and the related strain rate sensitivity (m)...
4 CitationsSource
#1Bowen Zheng (SUT: Shenyang University of Technology)H-Index: 3
#2Fuyu Dong (SUT: Shenyang University of Technology)H-Index: 6
Last. Kun ShiH-Index: 1
view all 11 authors...
Abstract The tribological characteristics of 6%(TiC + TiB)/Ti–6Al–4V composite against Cr12MoV steel were systematically investigated using a pin-on-disc wear machine in a static temperature range of 25–600 °C. At 25 °C, the wear rate variation was proportional to the load and inverse to sliding speed. Meanwhile, the wear mechanism underwent a transition from delamination and slight oxidative wear at 0.11 m/s to delamination and abrasive wear at 0.22 m/s and then became mainly oxidation wear at ...
2 CitationsSource
#1Binbin Wang (HIT: Harbin Institute of Technology)H-Index: 7
#2Liangshun Luo (HIT: Harbin Institute of Technology)H-Index: 19
Last. Hengzhi Fu (HIT: Harbin Institute of Technology)H-Index: 35
view all 11 authors...
Abstract Comparative studies on Zr35Cu65 and Zr65Cu35 amorphous systems were performed using molecular dynamic simulations to explore whether their hydrogenated mechanical behavior depends on the content of hydride-forming elements. Although both of them present an increased strength and ductility after hydrogen microalloying, we observe the improved mechanical behavior for Zr35Cu65 is more pronounced than that for Zr65Cu35. In these two samples, the distribution of configurational potential ene...
2 CitationsSource
#1Bowen Zheng (SUT: Shenyang University of Technology)H-Index: 3
#2Fuyu Dong (SUT: Shenyang University of Technology)H-Index: 6
Last. Xuan Wang (Chongqing University)H-Index: 2
view all 12 authors...
Abstract To enhance wear properties of titanium alloys, in situ titanium matrix composites (TMCs) were synthesized by a melting cast method with (TiC + TiB) volume fractions of 0, 2, 4, 6, 8, and 10%. The results indicated that tribological properties of TMCs were increased owing to the dispersed distribution of (TiC + TiB) reinforcements, which improved the ability to resist the surface shear stress. Moreover, the stable transfer layer formed during wear reduced the shear strength and limited t...
12 CitationsSource
#1Bowen Zheng (SUT: Shenyang University of Technology)H-Index: 3
#2Fuyu Dong (SUT: Shenyang University of Technology)H-Index: 6
Last. Peter K. LiawH-Index: 94
view all 11 authors...
1 CitationsSource
#1Bowen ZhengH-Index: 3
#2Fuyu DongH-Index: 6
Last. Jun ChengH-Index: 1
view all 11 authors...
3 CitationsSource
#1Fuyu Dong (SUT: Shenyang University of Technology)H-Index: 6
#2Mengyuan He (SUT: Shenyang University of Technology)H-Index: 2
Last. Xiaoguang Yuan (SUT: Shenyang University of Technology)H-Index: 6
view all 8 authors...
Abstract The shear transformation zone (STZ) and ductility of Zr-based bulk metallic glass with varying hydrogen content were analyzed using serrated flow in nanoindentation, with each serration representing the formation and expansion of one or more shear bands. An exponential model was employed to extract the serrations and obtain a certain range of shear stress, and STZ size was estimated via thorough statistical data analysis. The experimental results demonstrated a striking decrease in the ...
11 CitationsSource