How can the fatigue be prevented?

Q: How do temperature and fretting factors affect the fatigue life of a component made from metal…

A: Fatigue Life : Definition - Fatigue Life is refer as the deformation and failure behavior of any…

Q: Cold working of metals will give better final properties than hot working. Select one: True False

A: Hot and cold working: Important difference between these processes is hot working is done at high…

Q: What are the factors that affect the ultimate choice of the material?

A: There are two important principles that should apply to materials for their ultimate choice:…

Q: Effect of heat treatment on fatigue life of Aluminum

A: heat treatment is used to improve the mechanical properties of the material. The heat-treated…

Q: Components that suffered fatigue failure during operation can be identified byseveral characteristic…

A: Some characteristic features of fatigue failure in components include:Explanation:Crack Initiation:…

Q: Does consideration of creep become important when materials are in service for long periods of time?

A: Creep: When a part of any member  is subjected to constant stress at high temperature for a long…

Q: When does the mean stress level affect fatigue crack propagation rates in metal alloys?

A: A component is subjected to a fluctuating stress fails at a stress much below their static strength.…

Q: Cold working of metals will give better final properties than hot working. Select one: True False

A: Solution:

Q: How can we develop a method for finding the support reactions?

A:

Q: Why is it important to know the suitable fabrication/processing technique to be used for a certain…

A: Metal fabrication/processing technique: Metal fabrication meaning creating the desired shape/ sized…

Q: Are fatigue striations always visible on a fatigue fracture surface? If not, under what conditions…

A: Answer Fatigue Striation : these are the marks induced on the surface of fracture and goes on…

Q: When is Strain hardening used? How is it performed?

A: Strain hardening is used when there is a need to increase the hardness of the material. It also…

Q: Does the creep strength vary with temperature?

A: Creep: When a part of any member  is subjected to constant stress at high temperature for a long…

Q: In what class of material is stress whitening often seen, and what is the physical origin of the…

A: The phenomenon of stress whitening is generally observed in amorphous solids. However, it may also…

Q: What are ratchet lines, and how are they arranged with respect to the fatigue crack front and any…

A: Ratchet lines are steps in fatigue fracture surfaces  that originate  from the interaction between…

Q: Explain the process of annealing aluminum sheet

A: Annealing aluminum sheet is a heat treatment process used to enhance its properties by relieving…

Q: What visual evidence supports the presence of significant grain boundary sliding in many creep…

A: Irregular atomic bed displacement occurred due to grain boundary sliding. These displacements of…

Q: What fracture surface feature is often a clue for the presence of environment-assisted cracking in…

A: Environmental assisted cracking(EAC) refers to brittle fracture of a ductile material due to…

Q: What two general competing processes control the creep rate of a metal? What is the relative…

A: The two general competing processes that control the creep rate are strain hardening and strain…

Q: Why is fatigue generally less of a problem with ceramics and glasses than with metals and polymers?

A: Fatigue is defined as a mechanical failure in which material is failed under its yielding strength.…

Q: How did temperature affect the toughness of C1045-CF, Cast Iron, and AL7075-T6

A: Ductility: The property of a metal by virtue if which it can be transformed into thin wires by the…

Q: Why inclusion can decrease fatigue strength?

A: Fatigue strength is the measure of maximum stress for a material which can sustain without failure…

Q: What is a fatigue limit, and what relevance does it have for lifetimes in the gigacycle (109)…

A: Fatigue is a kind of failure that occurs in a material when they are constrained to repeated…

Q: Is the fatigue responsible for the materials?

A: Fatigue: The failure of a material to the repeated cyclic loads applied on it is termed as Fatigue.…

Q: For materials that have very low ductility and high strength and room temperature what is often used…

A: The materials that have low ductility as well as high strength at room temperature are prone to very…

Q: What is the difference in appearance between ductile & brittle fractures?

A: Fracture is a phenomenon in which body is separated into two or more pieces under the application of…

Q: What are the possible defects of MIG welding on stainless steels?

A: Metal Inert Gas Welding Metal Inert Gas Welding uses consumable electrode and it is used to join…

Q: Regarding annealing, choose the right answer (One or more): The actual annealing time must be long…

A:

Q: Describe how a ductile fracture comes about?

A: Answer : Ductile Material are those materials that go through substantial plastic deformation before…

Q: Micro-hardness profiles were obtained for the tool steel, the weld zone and stainless steel. Figure…

A: A statement is given that " the dents on the stainless steel is larger than those on the tool…

Q: Why fracture strain for metals (Aluminum, Mild Steel) in pure share is higher than pure tension?

A: fracture strain for metals (Aluminum, Mild Steel) in pure share is higher than pure tension because

Q: the ctrocc con strocC con

A: The effect of stress concentration factor under static loading is not serious for ductile materials…

Q: Mention the factors influencing corrosion

A: Factors influencing the corrosion:-

Q: t it is tha

A: Given data SEM Image of fracture surface is given  Required  Identification of types of fracture…

Q: Is the deformation always uniform throughout the body?

A: Whenever a force is applied to a body, it changes its shape and size.deformation in the body may be…

Q: Explain the mechanism of the corrosion fatigue and thermal fatigue, how to prevent/protect from your…

A: Corrosion fatigue: It is failure of a material due to the corrosion acting on it. The material…

Q: How can corrosion lead to fracture?

A: Corrosion It is a natural process that is generally observed in metal in which the metal react with…

Q: A method of determining the result of heat treatment as well as the state of a metal prior to heat…

A: Solution:   Heat Treatment of metals is done to enhance their mechanical, physical and chemical…

Q: When does fatigue occur in metals?

A: Many times force acting on the mechanical component varies in magnitude from a positive value to the…

Q: How can some nonferrous metal alloys such as aluminum or Monel be hardened?

A: How can some nonferrous metal alloys such as aluminum or Monel be hardened?

Q: List three general categories of surface treatment that can increase fatigue life, and provide one…

A: The three general categories of surface treatment that increase fatigue life are: 1. Case hardening…

Q: What is the elongation fracture for Gary Cast Iron 35? in percentage (Brittle)

A: Given question: What is the elongation fracture for Gray Cast Iron 35 in percentage?   The given…

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.