Microstructure and hot deformation behavior of the Cu-Sn-Ni-Zn-Ti(-Y) alloy

Xu, Deye; Zhou, Meng; Zhang, Yi; Tang, Shunlong; Zhang, Zhiyang; Liu, Yong; Tian, Baohong; Li, Xu; Jia, Yanlin; Volinsky, Alex A.; Li, De; Liu, Qiujie

doi:10.1016/j.matchar.2022.112559

Cited by 13 publications

(5 citation statements)

References 37 publications

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“…At lower temperatures (300 °C) and larger strain rates, the flow is steady, leading to flow softening. Similar findings were made by Xu et al [28]. Flow curves show peaks and plateaus due to strain hardening and flow softening.…”

Section: Flow Curves After Coating For Alloy and Biohybrid Compositessupporting

confidence: 89%

Hot deformation and fatigue behaviour of a zinc base doped biocompatible material: characterization of plasma spray coating on surface

Sonagiri,

2023

Surf. Topogr.: Metrol. Prop.

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Biomaterials are natural or man-made substances put into the body to turn a living cell into a working organ. Bone tissue and biocompatibility are emerging as an alternative approach to regenerating bone due to some distinct advantages over autografting and allografting. This research aimed to fabricate a novel porous scaffold that can be utilized as a bone substitute. Zn-nHApx-Srx (x = 0, 3, 6, 9) were selected by different weight ratios and synthesized using the powder metallurgy method. The utilization of nanohydroxyapatite (Ca10(PO4)6(OH)2) is due to its excellent biocompatibility with the human body. Polylactic-co-glycolic acid (PLGA) is incorporated to get enhanced biological performance. Plasma spray coating was performed on a zinc substrate using pure and doped biohybrid composites calcined at 800 °C. The nanohybrid composites' tensile strength increased between 0.4 and 19.8 MPa by increasing Zn and Sr weight ratios. In addition, 3% Sr/2.5% Zn with 2% of nHAp-PLGA composite showed improved hardness, which is beneficial for resembling bone tissue and die-casting fittings in automobile manufacturing applications. Mechanical properties, FT-IR, hot deformation behaviour, and SEM techniques help us understand the behaviour of Zn-Sr-nHAp in a vial containing PLGA. The highest ultimate tensile strength of 182 MPa and improved flow softening behaviour are achieved in a coated Zn/6% (nHAp-Sr) mixture suitable for biodegradable implant applications.

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Section: Flow Curves After Coating For Alloy and Biohybrid Compositessupporting

confidence: 89%

Hot deformation and fatigue behaviour of a zinc base doped biocompatible material: characterization of plasma spray coating on surface

Sonagiri,

2023

Surf. Topogr.: Metrol. Prop.

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“…Dislocation tangling and walls can be observed in the sample, along with original subgrains forming inside without obvious dynamic recrystallization grains in Figure 11 a in the case of 423 K and 0.1 s −1 . The softening of the alloy was mainly achieved through dislocation slip, cross-slip, climb, and recombination inside the grain [ 42 ]. When T = 423 K and

= 1 s −1 , a polygonal structure appeared clearly inside the grain due to the segmentation effect of dislocation grids or walls ( Figure 11 b), indicating the occurrence of continuous dynamic recrystallization (CDRX) inside the alloy.…”

Section: Resultsmentioning

confidence: 99%

“…Dislocation tangling and walls can be observed in the sample, along with original subgrains forming inside without obvious dynamic recrystallization grains in Figure 11a in the case of 423 K and 0.1 s −1 . The softening of the alloy was mainly achieved through dislocation slip, cross-slip, climb, and recombination inside the grain [42]. When T = 423 K and .…”

Section: Microstructure Evolutionmentioning

confidence: 99%

Thermal Deformation Behavior and Dynamic Softening Mechanisms of Zn-2.0Cu-0.15Ti Alloy: An Investigation of Hot Processing Conditions and Flow Stress Behavior

Xie

Kuang

et al. 2023

Materials

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Through isothermal hot compression experiments at various strain rates and temperatures, the thermal deformation behavior of Zn-2.0Cu-0.15Ti alloy is investigated. The Arrhenius-type model is utilized to forecast flow stress behavior. Results show that the Arrhenius-type model accurately reflects the flow behavior in the entire processing region. The dynamic material model (DMM) reveals that the optimal processing region for the hot processing of Zn-2.0Cu-0.15Ti alloy has a maximum efficiency of about 35%, in the temperatures range (493–543 K) and a strain rate range (0.01–0.1 s−1). Microstructure analysis demonstrates that the primary dynamic softening mechanism of Zn-2.0Cu-0.15Ti alloy after hot compression is significantly influenced by temperature and strain rate. At low temperature (423 K) and low strain rate (0.1 s−1), the interaction of dislocations is the primary mechanism for the softening Zn-2.0Cu-0.15Ti alloys. At a strain rate of 1 s−1, the primary mechanism changes to continuous dynamic recrystallization (CDRX). Discontinuous dynamic recrystallization (DDRX) occurs when Zn-2.0Cu-0.15Ti alloy is deformed under the conditions of 523 K/0.1 s−1, while twinning dynamic recrystallization (TDRX) and CDRX are observed when the strain rate is 10 s−1.

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“…The grain boundaries start to bulge after the pre-generated subgrains reach a critical size. The hightemperature conditions during the deformation process provide ample energy for dislocations to disappear and annihilate, [46][47][48] and Figure 17b shows that the original grains are gradually replaced by DDRX grains. However, the kinetic condition of CDRX is much higher than that of DDRX, [49][50][51][52] a high strain is required to fully realize CDRX and a low strain is required to start CDRX, only high strains completely convert dislocations and substructures at lower strains into large grain boundaries.…”

Section: Drx Mechanismmentioning

confidence: 99%

Study on Hot Deformation Behavior and Dynamic Recrystallization Mechanism of Cu‐Ti‐Fe Alloy

Wang,

Ren,

Wang

et al. 2023

Adv Eng Mater

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Hot compression experiments with the deformation temperatures of 750‐950 °C and the strain rates of 0.01‐10 s‐1 were carried out on a Gleeble‐3500 thermal‐mechanical simulator. The flow behavior and dynamic recrystallization (DRX) mechanism of the Cu‐Ti‐Fe alloy were systematically studied under different hot deformation conditions. According to the curves of flow stress and work hardening rate, the DRX critical condition of the alloy is obtained, and the critical stress value of DRX is small under high‐temperature and low‐strain rate. After fitting, the logarithmic values of the critical stress and critical strain have a linear relationship with lnZ, which indicates that the alloy is more prone to DRX at high temperatures and low strain rates. The Arrhenius constitutive model of the alloy was established, the linear correlation coefficient (R2) was 0.984. Combined with the microstructure of Cu‐Ti‐Fe alloy, the microstructure evolution characteristics and DRX mechanism were elucidated. The dominant mechanism of the alloy under the deformation temperature of 750–950 °C is the DRX mechanism. The LAGBs transform into HAGBs and continuous dynamic recrystallization (CDRX) grains form. Abundant dislocations gather near the HAGBs, causing grain boundaries to protrude. High‐temperature conditions make the dislocations disappear, forming discontinuous dynamic recrystallization (DDRX) grains.This article is protected by copyright. All rights reserved.

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Microstructure and hot deformation behavior of the Cu-Sn-Ni-Zn-Ti(-Y) alloy

Cited by 13 publications

References 37 publications

Hot deformation and fatigue behaviour of a zinc base doped biocompatible material: characterization of plasma spray coating on surface

Hot deformation and fatigue behaviour of a zinc base doped biocompatible material: characterization of plasma spray coating on surface

Thermal Deformation Behavior and Dynamic Softening Mechanisms of Zn-2.0Cu-0.15Ti Alloy: An Investigation of Hot Processing Conditions and Flow Stress Behavior

Study on Hot Deformation Behavior and Dynamic Recrystallization Mechanism of Cu‐Ti‐Fe Alloy

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