Corrosion Behavior of Rebar HRB400 in NaCl Solution

2013 ◽  
Vol 438-439 ◽  
pp. 353-356
Author(s):  
Ping Li ◽  
Ying Wang
Keyword(s):  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Strong Consistency ◽  
Solution Concentration ◽  
Test Results ◽  
Nacl Solution ◽  
Corrosion Morphology ◽  
Rate Calculation ◽  
Corrosion Time

The corrosion behavior of rebar HRB400 in 0.5 wt.%, 1.5 wt.% and 3.5 wt.% NaCl solutions was investigated by corrosion rate calculation and corrosion morphology observation. The results showed that, with the increase of corrosion time from 240h to 720h, the corrosion rate of rebar HRB400 in each NaCl solution increases. With the increase of NaCl solution concentration, the corrosion rate of rebar HRB400 increases. The corrosion morphologies show strong consistency with the test results of corrosion rate.

Study on Mechanical Properties of Rebar HRB400 after Corrosion

2014 ◽  
Vol 908 ◽  
pp. 115-118
Author(s):  
Ping Li ◽  
Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Nacl Solution ◽  
Before And After ◽  
Corrosion Time

The corrosion behavior of rebar HRB400 in 1.5 wt.% NaCl solution was studied, and the mechanical properties before and after corrosion were tested. The results showed that, with the increase of corrosion time from 240h to 720h, the corrosion rate of rebar HRB400 increases and the corrosion becomes heavier. Meanwhile, the yield strength and tensile strength decrease, but the elongation decreases at first and then increases.

Effect of Corrosion on Mechanical Properties of Reinforcing Bar HPB400

2012 ◽  
Vol 214 ◽  
pp. 272-275
Author(s):  
Ying Wang ◽  
Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Pore Solution ◽  
Nacl Solution ◽  
Reinforcing Bar ◽  
Corrosion Time

The corrosion behavior of reinforcing bar HRB400 in simulated concrete pore solution (3.5 wt. % NaCl solution) was studied, and the tensile mechanical properties after corrosion were tested. The results showed that, with corrosion time increasing from 240h to 720h, the corrosion rate of reinforcing bar HRB400 increases. With the increase of corrosion time (corrosion rate), the yield strength and tensile strength decrease, but the elongation decreases at first and then increases.

Effect of Corrosion on Mechanical Properties of Reinforcing Bar HPB235

2012 ◽  
Vol 450-451 ◽  
pp. 201-204 ◽  
Author(s):  
Ying Wang ◽  
Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Pore Solution ◽  
Nacl Solution ◽  
Reinforcing Bar ◽  
Before And After ◽  
Corrosion Time

The corrosion behavior of reinforcing bar HPB235 in simulated concrete pore solution (3.5 wt.% NaCl solution) was investigated, and the tensile mechanical properties before and after corrosion were tested. The results showed that, with corrosion time increasing from 240h to 720h, the corrosion rate increases and the corrosion becomes heavier. With the increase of corrosion time (corrosion rate), the yield strength and tensile strength decrease, but the elongation decreases at first and then increases.

Mechanical Properties of Reinforcing Bar HRB335 after Corrosion

2012 ◽  
Vol 204-208 ◽  
pp. 3805-3808
Author(s):  
Ying Wang ◽  
Li Ping
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Nacl Solution ◽  
Reinforcing Bar ◽  
Corrosion Time

The corrosion behavior of reinforcing bar HRB335 in 3.5 wt.% NaCl solution was investigated, and the tensile mechanical properties after corrosion were tested. The results showed that, with the increase of corrosion time, the corrosion rate of reinforcing bar HRB335 increases and the corrosion becomes heavier. Meanwhile, the yield strength and tensile strength decrease, but the elongation decreases at first and then increases.

Corrosion Behavior of Rebar HPB235 in NaCl Solution

2013 ◽  
Vol 765-767 ◽  
pp. 3130-3133
Author(s):  
Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Nacl Solution ◽  
Before And After ◽  
Corrosion Time

The corrosion behavior of rebar HPB235 in 1.5wt.% NaCl solution was studied and its mechanical properties were tested before and after corrosion. The results showed that, with corrosion time increasing from 240h to 720h, the corrosion rate increases and the corrosion becomes heavier and heavier. After 720h, the yield strength, tensile strength and elongation are decreased by different extent.

Mechanical Properties of Rebar HRB400 after Corrosion

2013 ◽  
Vol 753-755 ◽  
pp. 516-519 ◽  
Author(s):  
Ying Wang ◽  
Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Nacl Solution ◽  
Corrosion Time

The corrosion behavior of rebar HRB400 in 3.5 wt.% NaCl solution was investigated, and the tensile mechanical properties after corrosion were tested. The results showed that, with the increase of corrosion time, the corrosion rate of rebar HRB400 increases and the corrosion becomes heavier. Meanwhile, the yield strength and tensile strength decrease, but the elongation increases at first and then decreases.

Effect of Corrosion on Mechanical Properties of Rebar HRB335

2013 ◽  
Vol 753-755 ◽  
pp. 539-542 ◽  
Author(s):  
Ying Wang ◽  
Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Yield Strength ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Pore Solution ◽  
Nacl Solution ◽  
Before And After ◽  
Corrosion Time

The corrosion behavior of rebar HRB335 in simulated concrete pore solution (3.5 wt.% NaCl solution) and the tensile mechanical properties before and after corrosion were investigated. The results showed that, with corrosion time increasing from 30 days to 90 days, the corrosion rate increases. With the increase of corrosion time (corrosion rate), the yield strength and tensile strength decrease, but the elongation decreases at first and then increases.

scholarly journals The effect of time variation on the steels corrosion rate in 0.5 M H2SO4 solution

2021 ◽  
Vol 1 (2) ◽  
pp. 49-55
Author(s):  
Afira Ainur Rosidah ◽  
Vuri Ayu Setyowati ◽  
Suheni Suheni ◽  
Rafly Rijayanto
Keyword(s):  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Time Variation ◽  
H2so4 Solution ◽  
Steel Type ◽  
Wide Range ◽  
Aisi 4140 ◽  
Aisi 1045 ◽  
Ss 304 ◽  
Corrosion Time

Previous researches have carried out studying the corrosion behavior of steels, the most frequently used steels are medium carbon steel, alloy steel, and stainless steel. This is due to their wide range of applications. So, corrosion behavior is necessary to be analyzed for every steel type because of its wide function. This study was aimed to analyze the corrosion rate, macrostructure, and the XRD results of the AISI 1045, AISI 4140, and SS 304 which represent every steel type. Then, the steels were exposed to the 0.5M H2SO4 solution with various corrosion times. The variation of the corrosion time was 48, 96, and 144 hours. The results of this study revealed that AISI 1045 showed the highest corrosion rate with the value of 183.7 mpy at 144 hours of the time variation. All specimens obtained an increase in the corrosion rate with the increase in the corrosion time. Furthermore, for the macrostructure results, AISI 1045 and AISI 4140 gave obvious rust on the surface of the specimens for all time variation. The corrosion spots appear in the time variation of 96 and 144 hours for SS 304 specimens. XRD analysis confirmed the presence of metal oxides as corrosion products.

scholarly journals Corrosion Behavior of the As-Cast and As-Solid Solution Mg-Al-Ge Alloy

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1812 ◽  
Author(s):  
Xiaoda Liu ◽  
Ming Yin ◽  
Shaohua Zhang ◽  
Huan Wei ◽  
Baosheng Liu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Solution Treatment ◽  
Electrochemical Measurement ◽  
Phase Changes ◽  
Solid Solution Alloy ◽  
Corrosion Performance ◽  
Corrosion Morphology ◽  
Solid Solution Treatment

The corrosion behavior of Mg-3Al-xGe (x = 1, 3, 5) alloy in as-cast and as-solid was investigated by virtue of microstructure, corrosion morphology observation, and electrochemical measurement. Among the as-cast alloys, the corrosion rate of Mg-3Al-1Ge with a discontinuous bar-morphology was the highest, which was 101.7 mm·a−1; the corrosion rate of Mg-3Al-3Ge with a continuous network distribution was the lowest, which was 23.1 mm·a−1; and the corrosion rate of Mg-3Al-5Ge of Ge-enriched phase with sporadic distribution was in-between, which was 63.9 mm·a−1. It is suggested that the morphology of the Mg2Ge phase changes with a change in Ge content, which affects the corrosion performance of the alloy. After solid solution treatment, the corrosion rate of the corresponding solid solution alloy increased—Mg-3Al-1Ge to 140.5 mm·a−1, Mg-3Al-3Ge to 52.9 mm·a−1, and Mg-3Al-5Ge to 87.3 mm·a−1, respectively. After investigation of the microstructure, it can be suggested that solid solution treatment dissolves the Mg17Al12 phase, which changes the phase composition of the alloy and also affects its microstructure, thus affecting its corrosion performance.

scholarly journals The Corrosion Behavior of Sputter-Deposited Nanocrystalline W-Cr Alloys in Nacl and NaohaSolutions

1970 ◽  
Vol 25 ◽  
pp. 53-61
Author(s):  
Minu Basnet ◽  
Jagadeesh Bhattarai
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Chromium Content ◽  
Open Circuit ◽  
Nacl Solution ◽  
Corrosion Rates ◽  
Naoh Solution ◽  
Order Of Magnitude ◽  
Sputter Deposited

The corrosion behavior of the sputter-deposited nanocrystalline W-Cr alloys wasstudied in 0.5 M NaCl and alkaline 1 M NaOH solutions at 25°C, open to air usingimmersion tests and electrochemical measurements. Chromium metal acts synergisticallywith tungsten in enhancing the corrosion resistance of the sputter-deposited W-Cr alloys soas to show higher corrosion resistance than those of alloy-constituting elements in both 0.5M NaCl and 1 M NaOH solutions. In particular, the nanocrystalline W-Cr alloys containing25-91 at% chromium showed about one order of magnitude lower corrosion rates (that is,about 1-2 × 10-3 mm.y-1) than those of tungsten and chromium metals even for prolongedimmersion in 0.5 M NaCl solution at 25°C. On the other hand, the corrosion rate of thesputter-deposited W-Cr alloys containing 25-75 at % chromium was decreased significantlywith increasing chromium content and showed lowest corrosion rates (that is, 1.5-2.0 × 10-3 mm.y-1) after immersed for prolonged immersion in 1 M NaOH solution. The corrosion ratesof these nanocrystalline W-(25-75)Cr alloys are nearly two orders of magnitude lower thanthat of tungsten and more than one order of magnitude lower corrosion rate than that ofsputter-deposited chromium metal in 1 M NaOH solution. The corrosion-resistant of all theexamined sputter-deposited W-Cr alloys in 0.5 M NaCl solution is higher than in alkaline 1M NaOH solution at 25°C. Open circuit potentials of all the examined W-Cr alloys areshifted to more noble direction with increasing the chromium content in the alloys afterimmersion for 72 h in both 0.5 M NaCl and 1 M NaOH solutions at 25°C, open to air.Keywords: Sputter deposition, nanocrystalline W-Cr alloys, corrosion test, electrochemicalmeasurement, NaCl and NaOH solutions.DOI:  10.3126/jncs.v25i0.3300Journal of Nepal Chemical Society Volume 25, 2010 pp 53-61

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