Effects of solution-aging treatments on microstructure features, mechanical properties and damage behaviors of additive manufactured Ti–6Al–4V alloy

Liu, Zheng; Zhao, Zibo; Liu, Jianrong; Wang, Qingjiang; Guo, Zeqing; Liu, Zemin; Zeng, Yanan; Yang, Guang; Gong, Shuili

doi:10.1016/j.msea.2020.140380

Cited by 19 publications

(15 citation statements)

References 33 publications

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“…e heat treatment occurred at above 900°C which resulted in the formation of lamellar beta phase and alpha structures which in turn contributed to the enhancement of mechanical properties. A similar observation was also reported by number of researchers [26][27][28][29][30][31][32].…”

Section: Introductionsupporting

confidence: 88%

“…e decrease in UTS was however accompanied by the increase in percentage elongation for all the heat treated samples and this is normal in metals [13,[34][35][36][37][38]. e increase in percentage elongation suggests that the increase in ductility of the material [32][33][34].…”

Section: Tensile Test Analysismentioning

confidence: 75%

“…In 60 minutes' microstructural image, subgrains started to disappear but some areas showed finer grains, and this was due to the grain growth turning the subgrains in to new finer grains. With increase in heating period, fine equiaxed grains and dislocation densities are well characterised and huge amount of dislocations, shear bands, and subgrains appears (see Figure 4(d)) [25,31,32].…”

Section: Resultsmentioning

confidence: 99%

“…e decrease in UTS is caused by the grain growth which is defined by the Hall-Petch relationship [26,28,35]. e decrease in UTS for the heat treated samples could be as the results of the annealing temperature which encouraged the transformation of alpha phase [13,32,[36][37][38]. e decrease in UTS was however accompanied by the increase in percentage elongation for all the heat treated samples and this is normal in metals [13,[34][35][36][37][38].…”

Section: Tensile Test Analysismentioning

confidence: 89%

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Effect of Heat Treatment on the Mechanical Properties of a 3 mm Commercially Pure Titanium Plate (CP-Ti Grade 2)

Mpumlwana

Msomi

Fourie

2021

Journal of Engineering

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Titanium is seen as a good material for application in many fields due to its compatibility with different environments. However, it remains unclear whether what happens when this material is exposed to certain high temperatures for longer periods of time. The primary objective of this study was to investigate the effect of heat on a 3 mm commercially pure titanium grade 2 plate at a constant temperature of 900°C at different heating times. Three different heating times were employed in this study: 30 minutes for the first period, 60 minutes for the second period, and 90 minutes for the third period. All heated samples were air cooled to room temperature after each heating period. Microhardness, microstructure, tensile strength, and scanning electron microscopy (SEM) tests were performed. All the results were analyzed and compared with the parent sample. It was observed that the heating period influenced microstructural arrangement of the material. The microstructural changes affected negatively the ultimate tensile strength while percentage elongation was improved. The microhardness of the heat treated samples were firstly negatively affected which later jumped and exceeded that of the parent material.

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Section: Introductionsupporting

confidence: 88%

Section: Tensile Test Analysismentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Section: Tensile Test Analysismentioning

confidence: 89%

See 2 more Smart Citations

Effect of Heat Treatment on the Mechanical Properties of a 3 mm Commercially Pure Titanium Plate (CP-Ti Grade 2)

Mpumlwana

Msomi

Fourie

2021

Journal of Engineering

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“…Between the temperature of 930 °C to 980 °C good refinement of α grains is notorious because of this refinement strength of the alloy increases. Above 980 °C, the strength decreases due to the rapid growth in prior β grains [9,10].…”

Section: Introductionmentioning

confidence: 99%

Effect of thermal cycling on mechanical and microstructural properties of heat-treated Ti-6Al-4V alloy

Teja

Manikandan

Ayyagari³

2022

Mater. Res. Express

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Titanium (Ti-6Al-4V) is an α+β phase-field alloy utilized in many industries due to its high strength-to-weight ratio and near-net shaping capability. Solution treated & aging, and stress relief annealing processes were performed on the samples to increase the strength and % of elongation. The heat-treated samples then thermally cycled for 500 cycles, 1000 cycles, and 1500 cycles to evaluate the microhardness and tensile properties. The presence of martensite and α2 precipitates in the thermally cycled samples was confirmed by scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD). In this investigation, at 1000 thermal cycles, all specimens show improvement in both hardness and strength when compared within the cycles. Solution-treated and aging (STA), stress relief annealing (SRA), and without any heat-treatment (WHT) processes have their highest hardness values recorded for 1000 thermal cycles, and the values are 471 HV0.5, 381 HV0.5, and 374.6HV0.5, respectively. For the SRA process, ultimate tensile strength (UTS) of 925 MPa and yield strength (YS) of 896 MPa have resulted in 1000 cycles. Similarly, at 1000 thermal cycle WHT processed samples yielded UTS of 920 MPa and YS of 885 MPa. STA process samples that are heat-treated for 1000 thermal cycles have better strength properties than SRA and WHT and had a UTS of 1530MPa and YS of 1420MPa. From a ductility point of view, a maximum elongation of 29% for the STA process has resulted. Compared to forged titanium alloy (base metal), an increase of 31% elongation and 41% ultimate tensile strength for solution treated and aging process at 1000 cycles has resulted in this investigation.

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Research Progress on Mechanical Properties of 3D Printed Biomedical Titanium Alloys

Sun

et al. 2023

J. of Materi Eng and Perform

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Effects of solution-aging treatments on microstructure features, mechanical properties and damage behaviors of additive manufactured Ti–6Al–4V alloy

Cited by 19 publications

References 33 publications

Effect of Heat Treatment on the Mechanical Properties of a 3 mm Commercially Pure Titanium Plate (CP-Ti Grade 2)

Effect of Heat Treatment on the Mechanical Properties of a 3 mm Commercially Pure Titanium Plate (CP-Ti Grade 2)

Effect of thermal cycling on mechanical and microstructural properties of heat-treated Ti-6Al-4V alloy

Research Progress on Mechanical Properties of 3D Printed Biomedical Titanium Alloys

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