Why does chromium in stainless steel make them more corrosion resistant in many environments than plain carbon steel

Q: 1. What is the difference in melting characteristics between a pure metal element and an alloy…

A: The pure metal is a mineral that was freshly prepared from its ores and they are 99% pure minimum.…

Q: (b) Figure 1 shows a schematic diagram of the corrosion mechanism which involved steel structure.…

A: (i) In this problem, we have to identify the type of corrosion by taking the help from the given…

Q: la. The corrosion resistance of stainless steels depends on the build-up of uniform surface film. As…

A: Storage tanks Storage tanks are used to store fluids like oil, water, chemicals for the industrial…

Q: How to measure the corrosion inhibition efficiency of a metal? And how to perform the weight loss…

A: Corrosion inhibition: A corrosion inhibitor is a chemical that efficiently decreases the corrosion…

Q: What are heat-treatable and non-heat-treatable aluminum alloys?

A: Heat treatable aluminum alloys: They consist of pure aluminum that is heated to a critical…

Q: What type of crystal defect is it that allows substitutional alloys to exist? A) Linear…

A: Based on the atomic arrangement, alloys can be of two types-substitutional and interstitial. In a…

Q: Q3/ A: Answer the following: 1- when does fretting corrosion occur? 2- when does stress corrosion…

A:

Q: The Melting temperature of Alloys occurs in a range of temperature?

A: given; -The Melting temperature of Alloys occurs in a range of temperature?

Q: Briefly explain why placing a PVC pipe nipple between a black iron water pipe and a copper pipe…

A: Corrosion is a process of destruction of the metal. There are galvanic corrosion, metallic…

Q: Which is the iron ore whose chemical component is FeCO3 and whose iron content is 48,2%? A)…

A: Solution:

Q: Type of metals that are used in springs, knives, and pressure vessels. a. Ferritic   b.…

A: Ferritic stainless steel has high corrosion resistance but less strength therefore cannot be used in…

Q: Alloying elements are added to steals for many purposes, including increasing harden ability ,…

A: The adding of the alloying element is a process of changing chemical composition of the steel to…

Q: How is the modulus of elasticity of an aluminum alloy affected by the composition of alloying…

A: Aluminum alloy:The aluminum alloy is the combination of aluminum and other metals such as copper,…

Q: Describe and discuss two methods of protecting steel from electrochemical corrosion

A: The corrosion of steel is caused due to the electrochemical reaction that takes place in the…

Q: An austenitic stainless steel contains - Ni. O 12 – 15 % O 8 - 12% O 15 – 18 % O 18 - 20 %

A: Austenite stainless steel is obtained by hardening of steel.

Q: Fe−C alloys have different compositions having different properties. What type of treatment is…

A:

Q: Describe the transport phenomena resulting in gas turbine hot corrosion in the presence of saline…

A: Hot corrosion : It is a rapid corrosion occurring due to the present of salt traces Due to this the…

Q: A high-alloy steel with 0.15% C, 10% Cr, 8% Ni, 2% Mo and a small amount of V in its composition.…

A: High alloy steel have alloying elements that contribute to high strength, toughness, hardness, and…

Q: Non Ferrous Metals possess High Electrical insulation properties?   Select one: True False

A: Given: Non Ferrous Metals possess High Electrical insulation properties?

Q: Two sheets of a 1040 steel are joined together with an aluminium rivet, as seen in figure below.…

A: To Define : The possible corrosion that might be created as result . Explanation: A welding of two…

Q: 1. a) Explain why plain carbon steel has a numbers of application as engineering materials, even…

A: (a) It is right that the plain carbon steel has not enough corrosion resistance. Without having…

Q: 99.6 wt% Fe-0.40 wt% C steel at a temperature just below the eutectoid, determine the following. a)…

A: Given data: Material=99.6 wt% Fe-0.4 wt%C steel Need to determine the composition of Fe3C, ferrite α…

Q: On the right side of the iron carbon diagram what kind of metal is found when the carbon content is…

A: There is some particular range of carbon percentage.

Q: Why is electrothermal atomization widely used in clinical applications? Q. What are the advantages…

A: Electrothermal atomizer: Electrothermal atomizer is nothing but a graphite tube atomizer which…

Q: Calculate the maximum membrane stress in the wall of shells having the following shapes. The vessel…

A: Hoop stress: The circumferential or hoop stress is a stress that acts on the pressure in the…

Q: The Molybdenum content in Molybdenum - Steel (4430) according to SAE/AISI classification system is O…

A: The Molybdenum content in Molybdenum - Steel (4430) according to SAE/AISI classification system is..…

Q: Alloying element and structure of Stainless steel

A: Solution:

Q: a) Most familiar metals are not highly pure, rather they are alloys, in which impurity atoms have…

A: Ans (a): The metals are not used in pure form. The impurity is added into the metal to improve its…

Q: Give the temperature range over which it is possible to austenitize each of the following Fe-C…

A: Given Iron carbon steel in austenitize To find Temperature range

Q: O stress corrosion intergranular corrosion O erosion-corrosion uniform attack corrosion

A: Solution :- Option C erosion- corrosion is correct answer.

Q: Specify the number of degree of freedom for the following alloys. Refer to the pictures below. A) 95…

A: The expression for the Gibbs phase rule in the general form is given as, P+F=C+N......(1) Here, P is…

Q: Q3/ What is the effect of velocity (agitation) on corrosion rate? Q4/ List the factors affecting the…

A: 3     --The number of pits on the surface and the depths of the pits increased with the velocity,…

Q: Determine the specific strength of the strongest Al, Mg, Cu, Ti, and Ni alloys.Use the densities of…

A: Specific strength of any material states that the ratio of yield strength of material to the density…

Q: 1. (A) The heat treatment of a material (lets say "steel") will affect it corrosion performance?…

A: Heat treatment is general process of heating santhi metals using various methods to get the desired…

Q: Choose the correct answer. A material that has high bond energy and high bond stiffness is expected…

A: The high strength material possesses smaller grain size. The magnetic permeability and electrical…

Q: The following factors play vital role in corrosion process

A: The following factors play vital role in corrosion process  Answer: Both

Q: Mention the factors influencing corrosion

A: Factors influencing the corrosion:-

Q: 22- At room temperature, when a piece of iron is immersed in a solution of 70% concentration nitric…

A: 22.When iron is dipped in 70% nitric acid, it becomes chemically passive due to the formation of a…

Q: Advanced Physics 4. Give the temperature range over which it is possible to austenitize each of the…

A: according to the given question

Q: what is a metal and what characteristics does it have in sense of electrical conductivity

A: Materials are generally classified into three types: Metals. Polymers, and Ceramics.

Q: What is the predominant type of bonding for titanium (Ti)? Metallic A)Hydrogen   B)Ionic…

A: Given :-    What is the predominant type of bonding for titanium (Ti)?

Q: A steel column partly submerged in lake water is found to corrode severely just beneath the water…

A: when steel pattern submerged in small pond instead of lack water then how would corrosion pattern…

Q: Importance of studying the applications and processing of metal alloys

A: Alloy can be defined as the mixture of the two metals in which the properties of the alloy are…

Q: answer choices 327 °C

A: From above digram it is clear that Sn is 100 ℅ ar the right corner. So from graph value of melting…

Q: In preventing corrosion of iron, a stronger reducing agent called sacrificial anode such as zinc is…

A: Sacrificial anode: The sacrificial anode are the alloys or metals that have more anodic or less…

Q: Some of the metals possess a body-centered crystal structure. Which of the following statements is…

A: Its answer is d. It has packing efficiency(74%) greater than SSC(52%) and BCC(68%).

Q: In order to increase corrosion resistance, a 2-mm-thick cladding of aluminum has been added to a…

A: Given: b=50 mmd=30 mmbs=46 mmds=26 mmM=300 N-mEs=200 GPaEa=70 GPa The ratio of the modulus of the…

Q: Explain and justify use of Titanium and its alloys in following application: • Bicycle frame •…

A: Use of titanium in bicycle frame The tensile strength of the titanium is very high as compared to…

Q: 5. The table below lists the yield strength, tensile strength, and ductility of pure copper and of a…

A: Consider first the properties of brass. Calculate the percentage increase in the yield strength of…

Corrosion control methods

Corrosion may be defined as the method in which metals are attacked on their exteriors by gases existing in the atmosphere, converting them to their oxides, nitrides, sulfides, etc.