In one batch of nickel (Ni)-plated cast iron components, you observed that there were minute pores...

In one batch of nickel (Ni)-plated cast iron components, you observed that there were minute pores in the Ni surface coating growing down to the cast iron surface.Should you allow this batch of nickel (Ni)-plated cast iron components be used for a water treatment application? Will the component be susceptible to corrosion and what form of corrosion could occur?

Expert Solution

Generally, the Corrosion of aluminum and its alloys in natural waters usually caused by the presence of harmful metal ions in solution like copper, lead, mercury.

Nickel deposition from hypophosphite containing baths has been used for providing corrosion protection to ferrous alloys. Nickel coating functions as a barrier against corrosive chemicals. The presence of pits and pores on the coating is detrimental to its corrosion resistance. so as the batch having pores growing down to cast iron surface there may be a chance of starting of corrosion. therefore the batch will not be allowed for used in water treatment application.

these components will be susceptible to corrosion and possible type of corrosion in cast iron due to improper coating is graphitic corrosion or graphitization.Graphitisation tends to penetrate into the metal but at a slower rate.

samet mamat answered 2 years ago

You are auditing payroll for the Cast IronCast Iron Technologies company for the year ended October...

You are auditing payroll for the Cast IronCast Iron Technologies company for the year ended October 31, 20162016. Included next are amounts from theclient's trial balance, along with comparative audited information for the prior year. LOADING... (Click the icon to view the amounts from the trial balance.) LOADING... (Click the icon to view the additional information.) Requirements a. Use the final balances for the prior year and the information in items 1 through 5 to develop an expected value for...

The modulus of elasticity of structural components was measured one minute after loading. The same samples...

The modulus of elasticity of structural components was measured one minute after loading. The same samples were tested again after 4 weeks. The following table shows the values of modulus of elasticity in both cases.Conduct an appropriate hypothesis test for the true average difference between the modulus in the two cases. Clearly state your conclusions.. Data is also available Sample Number After 1 minute After 4 weeks 1 10490 9110 2 16620 13250 3 17300 14720 4 15480 12740 5...

In your medical practice, you have observed that iron deficiency anemia appears to develop in a...

In your medical practice, you have observed that iron deficiency anemia appears to develop in a higher proportion of women who follow a strict vegan diet. You decide to conduct a prospective cohort study. A. Develop a hypothesis for your study B. Identify the exposure (independent variable) C. Identify the outcome (the dependent variable) D. List at least 2 confounding variables E. How will you account for these variables in your study?

I discuss a situation you observed or in which you were the caretaker for someone who...

I discuss a situation you observed or in which you were the caretaker for someone who had several teaching needs. OUTLINE THE process used to assess,plan,and teach the client and family members. Using theory from this chapter ,identify what was successful and what was not successful related to teaching and learning for this client and family. What would you do differently from what was done when you are in a similar situation in the future? From this experience, what did...

Seventy-one successes were observed in a random sample of n = 120 observations from a binomial...

Seventy-one successes were observed in a random sample of n = 120 observations from a binomial population. You wish to show that p > 0.5. State the null and alternative hypothesis. H0: p ≠ 0.5 versus Ha: p = 0.5H0: p < 0.5 versus Ha: p > 0.5 H0: p = 0.5 versus Ha: p ≠ 0.5H0: p = 0.5 versus Ha: p > 0.5H0: p = 0.5 versus Ha: p < 0.5 Calculate the appropriate test statistic. (Round your answer...

What features did the cells you observed have in common? How were they different? - Bacillus...

What features did the cells you observed have in common? How were they different? - Bacillus Megaterium - Mixed Diatoms - Anaboena - Micrococcus Luteus - Hydra - Saccharomyces - Paramecium

Describe how you could use pH control to separate lead and iron if they were both...

Describe how you could use pH control to separate lead and iron if they were both precipitated as their hydroxides. (Hint: how could pH be used to dissolve one of the hydroxide precipitates but not the other?)

You have placed a copper pot with water to heat on the stove. After one minute...

You have placed a copper pot with water to heat on the stove. After one minute you place your finger in the water and you are okay. When you touch the pot your finger gets burned. Upload a drawing of a molecular view of what the copper atoms and water molecules look like at the beginning of heating the pot and after the pot has been heated for 15 mins.

Thirty-minute workouts of one of the following will lead to burning the following calories. You wish...

Thirty-minute workouts of one of the following will lead to burning the following calories. You wish to test to see if there is a difference in the amount of calories burned from these three activities. Swimming Tennis Cycling 408 415 385 380 485 250 425 450 380 400 420 402 427 530 268 What is the p-value and your conclusion? p value = 0.0098 and conclude fail to reject the null the three activities are identical and tennis tends to...

If you were planning a community needs assessment, what are some components of team strategy you...

If you were planning a community needs assessment, what are some components of team strategy you would develop?

Question