MET414 3.1 Discussion Heat Transfer Failure

Explain what a “low specific heat” means in terms of heat retention.

Please provide the answers with appropriate images and steps

SHOW HAND WRITTEN SOLUTIONS PLEASE WITH DRAWING HEAT AND MASS TRANSFER PROBLEM Stainless steel type 304 (k=16.3 W/m-K) just came from heat treatment when it was brought to a room at 27 °C. It is in cube form and has an edge of side 20 cm. Initially, the temperature of the steel from the heat treatment is 500 °C. The total effective heat transfer coefficient was estimated to be 18 W/m2-K. How long will it take for the surface of the cube to be within 28 C of the room temp.?

1, What does steel have in terms of hot and cold shortness? What led to the Titanic disaster (focus only on the materials engineering component of the disaster in your response)?  2. What are the remedies for steel that is too hot or too cold? Respond succinctly. 3. What does metals and alloys' hydrogen embrittlement entail? What is the cheapest way to prevent hydrogen embrittlement in metals and alloys?

Pick the best soultion for the multiple choices.  Modulus of resilience is: Slope of elastic portion of stress – strain curve Area under the elastic portion of the stress –strain curve Energy absorbed during fracture in a tension test Energy absorbed during fracture in an impact test Slope of the plastic portion of the stress- strain curve                         (   ) Fatigue failure occurs under the condition of: High elastic stress High corrosivity High stress fluctuations High temperature High rate of loading                                                                                     (   )   Creep failure of a material occurs most rapidly when the operating temperature is: Cryogenic temperature Equal to its melting point Grater than 0.4 times its melting point in K Greater than 200 oF Close to boiling point                         (   )   Young’s modulus of a material is indicative of its: Tensile strength Yield Strength Ductility Stiffness Corrosion Resistance…

Answer correctly and quickly as possible please.

Note: Don’t use Heissler charts to answer this question Note2: You’re free to make assumptions regarding any value you think you need in order to solve the problem. Just explain your reasoning behind your assumption in a logical manner. Note3: please explain clearly and step by step

Please explain temperature dependence of thermal conductivity including interaction mechanism ?

Show your commplete solution.

A manufacturing process that unintentionally introduces cracks to the surface of a part was used to produce load-bearing components. The design requires that the component be able to withstand a stress of 450 MPa. The component failed catastrophically in service. You are a failure analysis engineer who must determine whether the component failed due to an overload in the service or flaws from the manufacturing process. The manufacturer claims that the components were polished to remove the cracks and inspected to ensure that no surface cracks were larger than 0.5 mm. the manufacturer believe the component failed due to operator error. It has been independently verified that he 5 cm diameter part was subjected to a tensile load of 1 MN (106 N) The material from which the component is made had a fracture toughness of 75 MPaÖm and ultimate tensile strength of 600 MPa. Assume external cracks for which f = 1.12. Who is at fault for the component failure, the manufacturer or the operator?…