1.Give examples of ionic, covalent and metallic bonds. Relate the bond type to regions of the...
1.Give examples of ionic, covalent and metallic bonds. Relate the bond type to regions of the periodic table. Describe some secondary bond types.
2. Draw the iron carbon phase diagram. Label all the phase regions. Indicate a eutectic reaction, a eutectoid reaction and a peritectic reaction. Indicate the structure of a steel containing 0.4%C at 950C, when cooled slowly to 800C, and finally cooled to 600C. Is this steel a hypo or hyper euectoid?
3. Draw a phase diagram from the following information. Melting point of A is 300C, melting point of B is 450C. Eutectic composition is 55%A, 45%B with a eutectic temperature of 125C. Maximum solid solubility of B in A is 20%, maximum solubility of A in B is 10%, both at the eutectic temperature. At room temperature the solubility of B in A is 10%, and for A in B is 5%.
Calculate the amount of pro eutectic alpha and eutectic for a 30%B in A alloy.
Homework Answers
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1.Give examples of ionic, covalent and metallic bonds. Relate
the bond type to regions of the...
heating 1 pound of a common low carbon steel with 0.50 wt % C content to...
heating 1 pound of a common low carbon steel with 0.50 wt % C
content to 950C and then slowly cool it down to room temperature.
The Fe-FeC3 phase diagram is shown below.
Paragraph Styles 3. (Total 30 points) Heating 1 pound of a common low carbon steel with 0.50 us content to 950 C and then slowly cool it down to room temperature. The Fe-FeC3 phase diagram is shown below. (a) What is the eutectic temperature, eutectic composition, and...
please answer question 2,3,4 A critical feature of steel is that a considerable amount of...
please answer question 2,3,4
A critical feature of steel is that a considerable amount of carbon can be dissolved in the austenite, phase, (up to 2.14 w/o at 1147"C), whereas carbon is essentially insoluble in ferrite, Cooling from point d to e, just above the eutectoid but still in the an increased fraction of the +y region, will produce phase and a microstructure similar to that shown: the particles precinitates out in the form af an intermetallic.compound called iron-carbide...
1 picture- problem 2 other pictures- phase diagrams for problem 1. Draw a phase diagram for...
1 picture- problem
2 other pictures- phase diagrams for problem
1. Draw a phase diagram for a binary eutectic alloy with solid solubility, naming and describing the significance of the main features. The binary alloy system of metals A and B contains two intermediate (intermetallic) phases A B and AB2 of narrow composition range, each of which forms by a peritectic reaction A cutectic point also exists, at 85at% B. The melting point of A is higher than that of...
1. High temperature heating elements are made out of an intermetallic often called molydisilicide. Answer the...
1. High temperature heating elements are made out of an intermetallic often called molydisilicide. Answer the following questions using the Mo-Si phase diagram shown below. Weight Percent Silicon Temperature, 130 Mo Atomic Percent Silicon a) Calculate the maximum wt.% silicon that is soluble in solid molybdenum. b) Write a eutectic reaction (upon cooling) and give its temperature and composition. How many different eutectics occur in this system? c) Write a peritectic reaction (upon cooling) and give its temperature and composition...
6. Consider the Ti-Ni system in the figure below. Atomic Percent Nickel 20 I800 1600 L...
6. Consider the Ti-Ni system in the figure below. Atomic Percent Nickel 20 I800 1600 L 1450C 1400 200 TIN (Ni) 1000 Un) re s00 Hati) s00 Ti Weight Percent Nickel N a. What are the melting temperatures of pure Ni and pure Ti? b. Label the liquidus and solidus lines in the figure. c. Label al field containing two phases in the figure. d. What is the maximum solubility of Ni in a-Ti and Ti in Ni? e. Write...
Canvas XCO Composition as 0 100 20 60 80 40 1 327°C 600 300 Liquid 500...
Canvas XCO Composition as 0 100 20 60 80 40 1 327°C 600 300 Liquid 500 232C a + L 200 400 183°C 8 Temperature (°C) Temperature (7) 18.3 61.9 97.8 300 100 4+ 200 100 0 O 20 40 60 80 100 (Pb) Composition (wt% Sn) (Sn) 3. A Pb-Sn phase diagram is given Answer the following questions. There is no need to re-draw the diagram in your solution sheet. (a) What is maximum solubility of Sn in Pb...
Cyw Ala Ατα Ile Ausn Lou Asp aly Lys Ser Which molecule below is asubunit of...
Cyw Ala Ατα Ile Ausn Lou Asp aly Lys Ser Which molecule below is asubunit of peptide chains a. Acetic acid b. Alanine O. ATP d. Gracil Report the charge on most aqueous aspartie acid molecules at pH-7. Report the approximate p values for the amino acid whose titration curve is shown below (note there may be more slots for answer than answers). A) Value 1 B) Value 2 c) Value 3 c) Value 4 The structure of a rare...
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab...
can
someone help me find this information?
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab to determine the identity of the polymer samples 2. Describe the density test. What observation will help you determine the density of each polymer? What precautions should be taken in placing the sample in the solutions? 3. Write the name and abbreviation for the six recyclable polymers 2 huetn deisity polyetayene.HDpz poulene: PP 4. Given the list of wavenumber...
heating 1 pound of a common low carbon steel with 0.50 wt % C
content to 950C and then slowly cool it down to room temperature.
The Fe-FeC3 phase diagram is shown below.
Paragraph Styles 3. (Total 30 points) Heating 1 pound of a common low carbon steel with 0.50 us content to 950 C and then slowly cool it down to room temperature. The Fe-FeC3 phase diagram is shown below. (a) What is the eutectic temperature, eutectic composition, and...
please answer question 2,3,4
A critical feature of steel is that a considerable amount of carbon can be dissolved in the austenite, phase, (up to 2.14 w/o at 1147"C), whereas carbon is essentially insoluble in ferrite, Cooling from point d to e, just above the eutectoid but still in the an increased fraction of the +y region, will produce phase and a microstructure similar to that shown: the particles precinitates out in the form af an intermetallic.compound called iron-carbide...
1 picture- problem
2 other pictures- phase diagrams for problem
1. Draw a phase diagram for a binary eutectic alloy with solid solubility, naming and describing the significance of the main features. The binary alloy system of metals A and B contains two intermediate (intermetallic) phases A B and AB2 of narrow composition range, each of which forms by a peritectic reaction A cutectic point also exists, at 85at% B. The melting point of A is higher than that of...
1. High temperature heating elements are made out of an intermetallic often called molydisilicide. Answer the following questions using the Mo-Si phase diagram shown below. Weight Percent Silicon Temperature, 130 Mo Atomic Percent Silicon a) Calculate the maximum wt.% silicon that is soluble in solid molybdenum. b) Write a eutectic reaction (upon cooling) and give its temperature and composition. How many different eutectics occur in this system? c) Write a peritectic reaction (upon cooling) and give its temperature and composition...
6. Consider the Ti-Ni system in the figure below. Atomic Percent Nickel 20 I800 1600 L 1450C 1400 200 TIN (Ni) 1000 Un) re s00 Hati) s00 Ti Weight Percent Nickel N a. What are the melting temperatures of pure Ni and pure Ti? b. Label the liquidus and solidus lines in the figure. c. Label al field containing two phases in the figure. d. What is the maximum solubility of Ni in a-Ti and Ti in Ni? e. Write...
Canvas XCO Composition as 0 100 20 60 80 40 1 327°C 600 300 Liquid 500 232C a + L 200 400 183°C 8 Temperature (°C) Temperature (7) 18.3 61.9 97.8 300 100 4+ 200 100 0 O 20 40 60 80 100 (Pb) Composition (wt% Sn) (Sn) 3. A Pb-Sn phase diagram is given Answer the following questions. There is no need to re-draw the diagram in your solution sheet. (a) What is maximum solubility of Sn in Pb...
Cyw Ala Ατα Ile Ausn Lou Asp aly Lys Ser Which molecule below is asubunit of peptide chains a. Acetic acid b. Alanine O. ATP d. Gracil Report the charge on most aqueous aspartie acid molecules at pH-7. Report the approximate p values for the amino acid whose titration curve is shown below (note there may be more slots for answer than answers). A) Value 1 B) Value 2 c) Value 3 c) Value 4 The structure of a rare...
can
someone help me find this information?
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab to determine the identity of the polymer samples 2. Describe the density test. What observation will help you determine the density of each polymer? What precautions should be taken in placing the sample in the solutions? 3. Write the name and abbreviation for the six recyclable polymers 2 huetn deisity polyetayene.HDpz poulene: PP 4. Given the list of wavenumber...
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