i) ii) Steel essentially contains a) 80% or more iron b) 50% or more iron c) Alloying elements like chromium, tungsten, nickel and copper d) Elements like phosphorous, sulfur and silicon in varying quantities At room temperature, steel is mostly -------- with patches of - a) Ferrite, austenite b) Austenite, ferrite c) Ferrite, pearlite d) Austenite, cementite iii) Nickel in steel a) Improves wear resistance, cutting ability and toughness b) Refines grain size and improves heat resistant properties c) Improves cutting ability and reduces hardening d) Gives ductility, toughness, tensile strength and anticorrosion properties

i) ii) Steel essentially contains a) 80% or more iron b) 50% or more iron c) Alloying elements like chromium, tungsten, nickel and copper d) Elements like phosphorous, sulfur and silicon in varying quantities At room temperature, steel is mostly -------- with patches of - a) Ferrite, austenite b) Austenite, ferrite c) Ferrite, pearlite d) Austenite, cementite iii) Nickel in steel a) Improves wear resistance, cutting ability and toughness b) Refines grain size and improves heat resistant properties c) Improves cutting ability and reduces hardening d) Gives ductility, toughness, tensile strength and anticorrosion properties

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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