Water jet impact damage mechanism and dynamic penetration energy absorption of 2A12 aluminum alloy

Zhang, Ping; Liu, Zehua; Yue, Xiujie; Wang, Penghao; Zhai, Yanchun

doi:10.1016/j.vacuum.2022.111532

Cited by 79 publications

(11 citation statements)

References 18 publications

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“…It is visible from Figure 6 b,d,f that surface hardness also increases by increasing irradiation time. Microwave irradiation gives more time for cladding particles to bond with the surface, due to which the cladding surface is properly formed [ 42 , 43 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

The Microstructure and Properties of Ni-Si-La2O3 Coatings Deposited on 304 Stainless Steel by Microwave Cladding

Dwivedi¹,

Sharma

et al. 2023

Materials

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In this investigation, microwave radiation was used alongside a combination of Ni powder, Si powder, and La2O3 (Lanthanum oxide) powder to create surface cladding on SS-304 steel. To complete the microwave cladding process, 900 W at 2.45 GHz was used for 120 s. “Response surface methodology (RSM)” was utilized to attain the optimal combination of microwave cladding process parameters. The surface hardness of the cladding samples was taken as a response. The optimal combination of microwave cladding process parameters was found to be Si (wt.%) of 19.28, a skin depth of 4.57 µm, irradiation time of 118 s, and La2O3 (wt.%) of 11 to achieve a surface hardness of 287.25 HV. Experimental surface hardness at the corresponding microwave-cladding-process parameters was found to be 279 HV. The hardness of SS-304 was improved by about 32.85% at the optimum combination of microwave cladding process parameters. The SEM and optical microscopic images showed the presence of Si, Ni, and La2O3 particles. SEM images of the “cladding layer and surface” showed the “uniform cladding layer” with “fewer dark pixels” (yielding higher homogeneity). Higher homogeneity reduced the dimensional deviation in the developed cladding surface. XRD of the cladded surface showed the presence of FeNi, Ni2Si, FeNi3, NiSi2, Ni3C, NiC, and La2O3 phases. The “wear rate and coefficient of friction” of the developed cladded surface with 69.72% Ni, 19.28% Si, and 11% La2O3 particles were found to be 0.00367 mm3/m and 0.312, respectively. “Few dark spots” were observed on the “corroded surface”. These “dark spots” displayed “some corrosion (corrosion weight loss 0.49 mg)” in a “3.5 wt.% NaCl environment”.

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Section: Resultsmentioning

confidence: 99%

The Microstructure and Properties of Ni-Si-La2O3 Coatings Deposited on 304 Stainless Steel by Microwave Cladding

Dwivedi¹,

Sharma

et al. 2023

Materials

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“…A slow corrosion rate is the most favorable for the corrosion resistance of 7075‐T6 aluminum alloy. [ 25–27 ] Effect of cutting depth on machined surface polarization curve…”

Section: Resultsmentioning

confidence: 99%

“…A slow corrosion rate is the most favorable for the corrosion resistance of 7075-T6 aluminum alloy. [25][26][27] (2) Effect of cutting depth on machined surface polarization curve Figure 9 describes how cutting depth affects the polarization curve of T6 and T6-C aluminum alloy. As cutting depth increases, the anode current density of T6 aluminum alloy first increases then reduces, and then increases again.…”

Section: Electrochemical Testmentioning

confidence: 99%

Corrosion mechanism and machinability of 7075‐T6 aluminum alloy in high‐speed cutting: With and without cryogenic treatment

Ping

Wang

Lin

et al. 2023

Materials & Corrosion

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This work aims to explore the effect of cutting parameters on the cutting force, surface quality, and corrosion resistance of 7075-T6 aluminum alloy after and without cryogenic treatment. Cryogenically treated (T6-C) and noncryogenically treated (T6) 7075-T6 aluminum alloy samples are experimentally cut and electrochemically corroded in a 3.5% NaCl solution. SEM, EDS, and electrochemical analysis are carried out to examine how cutting parameters affect the cutting force, surface quality, and corrosion resistance of cryogenically treated 7075-T6 aluminum alloy. The results show that after cryogenic treatment, under different cutting speeds, the cutting force is up to 39.8% smaller than without cryogenic treatment; under different cutting depths and feed rates, the cutting force is up to 136% and 21.54% smaller, respectively. Cryogenic treatment dramatically reduces the cutting force in the cutting process. As cutting speed increases, machined surface quality becomes better; fewer corrosion products and cracks are induced. When the cutting depth is 1.5 mm, there are fewer plows and micro-cracks on the machined surface than under other parameters, but cutting depth does not affect corrosion morphology significantly. The size of corrosion products is up to 55 μm smaller.The electrochemical analysis finds that at the cutting speed of 1500 m/min, after cryogenic treatment, the current density is 59.4% smaller than without cryogenic treatment; polarization resistance is 1.68 × 10 5 Ω•cm 2 larger. At the cutting depth of 1.5 mm, after cryogenic treatment, the current density is 66.16% smaller; self-corrosion potential shifts 0.19 V toward the positive pole. At the feed rate of 0.06 mm/z, after cryogenic treatment, self-corrosion potential shifts 0.18 V toward the positive pole; polarization resistance is 10.7% larger.

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“…The range of R 2 is 0 to 1, and values near 1 indicate that the model is very good at explaining the variations in the output response. 52,74 The values obtained for R 2 for P ip , P avg , CFE, U, and SEA through this model were equal to 0.71, 0.88, 0.83, 0.88, and 0.80, respectively.…”

Section: Regression Modelmentioning

confidence: 87%

Energy absorption capability of laterally loaded glass/epoxy tubular components containing halloysite nanotubes

Awd Allah,

Abd El-baky,

Alshahrani

et al. 2023

Journal of Composite Materials

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The crashworthiness capability of laterally loaded glass/epoxy (GFRE) tubular components containing halloysite nanotubes (HNTs) was explored in this article. GFRE components filled with 0, 1, 2, 3, and 4 weight percent (wt.%) of HNTs were created using wet-wrapping by hand lay-up technique. For the laterally loaded tubes, the crushing load and the energy absorption versus displacement responses were presented. In addition, distortion histories were tracked. The crashworthiness analysis was carried out by evaluating different indicators, i.e., initial crush load [Formula: see text], average crush load ([Formula: see text]), crush load efficiency (CFE), energy absorption (U), and specific absorbed energy (SEA). Two parameters of the Weibull distribution were employed to assess the experimental findings statistically. In addition, mathematical regression models were built to predict the energy absorption indicators. Experimental results demonstrated that an unfilled tube demonstrated the largest CFE of 1.84, while the maximum [Formula: see text] was demonstrated by a tube filled with 2 wt.% of HNTs with a value of 3.70 kN. Additionally, the tube filled with 4 wt.% of HNTs represents the extremes [Formula: see text], U, and SEA with values of 4.26 kN, 128.82 J, and 3.84 J/g, respectively. Due to their improved crashworthiness characteristics, GFRE filled with 4 wt.% of HNTs is suitable for use as a crashworthy device in automobiles.

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Water jet impact damage mechanism and dynamic penetration energy absorption of 2A12 aluminum alloy

Cited by 79 publications

References 18 publications

The Microstructure and Properties of Ni-Si-La2O3 Coatings Deposited on 304 Stainless Steel by Microwave Cladding

The Microstructure and Properties of Ni-Si-La2O3 Coatings Deposited on 304 Stainless Steel by Microwave Cladding

Corrosion mechanism and machinability of 7075‐T6 aluminum alloy in high‐speed cutting: With and without cryogenic treatment

Energy absorption capability of laterally loaded glass/epoxy tubular components containing halloysite nanotubes

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