Chromium Study guides, Revision notes & Summaries

Exam 2 ENTC 207Tool Steels - correct answer - Steels that do work to other steels (Working tools) - High alloy and carbon content - Expensive - Made in smaller lots with more controls - Cleanliness extremely critical - Not many made by many companies (limited accessibility Tool Steel Categories - correct answer - Letter and Number - Cold working - Shock Resisting - Hot working - High speed - Mold - Special Purpose Cold Working - correct answer - hardening methods - Prefi...

What is the term used to describe the following condition of lost corrosion resistance? "When certain stainless steels are heated between 500-850° C, carbides form at the grain boundaries and cause a local depletion of chromium." (A) Oxidization (B) Increased toughness (C) Solution heat treatment (D) Sensitization - (D) Sensitization Note: Also known as "carbide precipitation" -- Chromium binds to carbides, and "sweats out" at the grain boundaries On a radiograph, undercut appear...

CWB MOD 22 Welding Metallurgy of Stainless Steels Questions with Verified Answers Exercise Questions Section 1 - 6 1. Complete the following : a) Chromium stabilizes the _________form of iron b) Nickel stabilizes the ______________form of iron a) BCC b) FCC Exercise Questions Section 1 - 6 2. If a straight chromium steel of 18% Cr and < 0.1% C is heated to 1000 Celsius will it transform to austenite or remain as ferrite? Remain as ferrite Exercise Questions Section 1 - 6 3. What is the pre...

CWB Level II Exam Questions with Correct Answers What is the term used to describe the following condition of lost corrosion resistance? "When certain stainless steels are heated between 500-850° C, carbides form at the grain boundaries and cause a local depletion of chromium." (A) Oxidization (B) Increased toughness (C) Solution heat treatment (D) Sensitization - Answer-(D) Sensitization Note: Also known as "carbide precipitation" -- Chromium binds to carbides, and "sweats...

CBSPD EXAM PREP QUESTIONS AND ANSWERS, GRADED A+ VERIFIED/ Ethylene Oxide gas kills microorganisms by a process called - -Alkylation What is the process where a chromium oxide layer is placed on a surgical instrument - -Passivation What are the dark black Craters on a stainless steel instrument called - -Pitting What is the enzyme that breaks down fatty deposits like bone marrow and adipose tissue? - -Lipase What lubricant is recommended for use on surgical instruments? - -Water-based Wha...

CWB Level 2 All Modules Exam - Complete Solutions (Answered) What is the main alloying element in the AISI 200 series? (A) chromium (B) chromium and nickel (C) manganese What is the main alloying element in the AISI 300 series? (A) chromium (B) chromium and nickel (C) manganese Note: Steels in this series are austenitic! What is the main alloying element in the AISI 400 series? (A) chromium (B) chromium and nickel (C) manganese Note: Steels in this series are ferritic or martensitic! When refer...

What is the term used to describe the following condition of lost corrosion resistance? "When certain stainless steels are heated between 500-850° C, carbides form at the grain boundaries and cause a local depletion of chromium." (A) Oxidization (B) Increased toughness (C) Solution heat treatment (D) Sensitization correct answers(D) Sensitization Note: Also known as "carbide precipitation" -- Chromium binds to carbides, and "sweats out" at the grain boundaries On a radiogra...

Which foods are helpful for lowering blood pressure levels? - Celery, garlic, onions, nuts and seeds or their oils, cold-water fish, green leafy vegetables, whole grains and legumes What are varicose veins? - Dilated, tortuous, superficial veins in the legs What causes varicose veins? - Genetic weakness of the vein walls or their valves; excessive pressure within the vein due to a low-fiber induced increase in straining during defecation; long periods of standing and/or heavy lifting; damag...

CWB Level II (D) Sensitization Note: Also known as "carbide precipitation" -- Chromium binds to carbides, and "sweats out" at the grain boundaries - correct answer What is the term used to describe the following condition of lost corrosion resistance? "When certain stainless steels are heated between 500-850° C, carbides form at the grain boundaries and cause a local depletion of chromium." (A) Oxidization (B) Increased toughness (C) Solution heat treatment (D) Sensitization ...

ENTC 207 stainless steel Question and answers already passed 2023/2024 Define stainless steel - correct answer Stainless steels are steels with at least 10% chromium that exhibit passivity in oxidizing environments. intergranular corrosion F.S.S - correct answer s due to chromium depletion, caused by precipitation of chromium carbides and nitrides at grain boundaries. Because of the lower solubility for carbon and nitrogen and higher diffusion rates in ferrite, the synthesized zones of wel...