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1. Which the alloying elements are stabilize austenite phase form Fe- Fe.C system.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 21Q

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1. Which the alloying elements are stabilize austenite phase form Fe-
Fe.C system.

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1. Construct a vis-à-vis comparison of different alloyed materials. Cite the advantages, disadvantages, and its best application.
Relative to the octahedral crystal field, in the square planar crystal field the d-orbitals xy, yz, and xz are destabilized. True O False For a dº electronic configuration, which is the correcting ordering of atomic state energies? * O 3F < ³P < 1G < 'D < 'S O 'S < 3P < 'D < 3F < 'G 3P < 3F < 1S < 'D < 1G O 'G < 'D < 1S < ³F < ³P
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The maximum solid solubility of carbon in ferrite occurs at 0.022 wt% C and 727 ° C, the eutectoid composition is 0.76 wt% C, the maximum solid solubility of carbon in austenite occurs at 2.14 wt% C and 1147 ° C, and the cementite composition is 6.7 wt% C. For 2122 g of a 3.2134 wt% C steel at 726 ° C, what will be the mass of carbon present as part of a compound?(a) 67.9 g(b) 74.2 g(c) 58.7 g(d) 83.5 g
17
• 1. What is metallurgy? • 2. Give at least 5 examples of Ferrous alloy. Explain briefly its composition and its properties. Name a specific product/s that uses that alloy. 3. Give at least 5 examples of Nonferrous alloy. Explain briefly its composition and its properties. Name a specific product/s that uses that alloy. • 4. What is pig iron? What is its importance in iron and steelmaking? 5. Define steel. How may steel be classified? 6. What is the purpose of killing steel? Explain briefly how it is accomplished. • 7. What is the relation between SAE and AISI systems in metallurgy? • 8. Define what is bloom, billet, and slag. At what part of the manufacturing of steel do they come from. • 9. What is duralumin? What is its principal use? Give an example product. • 10. Differentiate hot-working and cold working processes of metals.
The precious metal platinum was first used by indigenous peoples of South America, who found impure, native samples of it in the Au mines of what is now Ecuador and used the samples to make small items of jewelry. Platinum’s high melting point (1772oC) makes it harder to work than Au (1064oC) and Ag (962oC), but this same property and a high resistance to chemical attack make Pt suitable as a material for high-temperature crucibles. Although Pt is a noble metal, in the +4 and +2 states it forms a variety of compounds, many of which are coordination complexes. Its coordinating abilities make it an important catalyst for organic and inorganic reactions. Draw coordination complex trans-Platinum diammine dichloride and label the Pt with its oxidation number. For Pt4+, draw energy level diagrams of the d-AOs and show orbital occupancy in both weak and strong octahedral fields. Calculate the total spin for each case. Calculate the CFSE (crystal field stabilization energy) in terms of Δ0 for…
The precious metal platinum was first used by indigenous peoples of South America, who found impure, native samples of it in the Au mines of what is now Ecuador and used the samples to make small items of jewelry. Platinum’s high melting point (1772oC) makes it harder to work than Au (1064oC) and Ag (962oC), but this same property and a high resistance to chemical attack make Pt suitable as a material for high-temperature crucibles. Although Pt is a noble metal, in the +4 and +2 states it forms a variety of compounds, many of which are coordination complexes. Its coordinating abilities make it an important catalyst for organic and inorganic reactions. The anticancer cisplatin (mentioned during lectures) can be prepared from K2PtCl6 via reduction with hydrazine (N2H4), giving K2PtCl4, followed by replacement of the 2 Cl ion ligands with NH3. Give the names to the three platinum compounds referred to. Draw coordination complex trans-Platinum diammine dichloride and label the Pt with its…