Carbonitriding is a case-hardening process in which a steel is heated in a gaseous atmosphere of such composition that carbon and nitrogen are absorbed simultaneously. Carbonitriding is a modification of the nitriding process. True False Based upon the percent elongation of a tensile sample, a ductile engineering material is defined by a value equal to or greater than 5% and a brittle material is defined by a value less than 5%. True False

Carbonitriding is a case-hardening process in which a steel is heated in a gaseous atmosphere of such composition that carbon and nitrogen are absorbed simultaneously. Carbonitriding is a modification of the nitriding process. True False Based upon the percent elongation of a tensile sample, a ductile engineering material is defined by a value equal to or greater than 5% and a brittle material is defined by a value less than 5%. True False

Precision Machining Technology (MindTap Course List)

2nd Edition

ISBN:9781285444543

Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes

Chapter2: Measurement, Materials, And Safety

Section2.7: Heat Treatment Of Metals

Problem 2RQ: Direct hardening can be performed on steel containing at least________ carbon.

See similar textbooks

Similar questions

9.23 After consultation of other references, write a brief report on one or two nondestructive test techniques that are used to detect and measure internal and/or surface flaws in metal alloys. 9.28 Briefly explain why BCC and HCP metal alloys may experience a ductile-to-brittle 00 transition with decreasing temperature, Bill whereas FCC alloys do not experience such a transition.
Select All the correct statements from below. a. If the averaged distance between partial dislocations for material A observed under TEM is smaller than material B, the estimated stacking fault energy of material A is lower than material B. b. K_IC is a material property that doesn't change with testing conditions c. The main difference between high cycle fatigue and low cycle fatigue is the difference in the number of cycles to failure d. A negative R value in fatigue test indicate the minimum stress is compressive in nature
Copper and copper alloys as specified by the Copper Development Association (CDA) and are designated as C00001 thru C99999 in the Unified Numbering System (UNS). True False An alloy steel designated as AISI 4130 WQT 700 means: chromium-molybdenum alloy steel containing .30% carbon in solution, that is through heat treated and water quenched. True False An AISI 4340 alloy steel contains .43 percent or 43 points of the element carbon in solution. True False Chemicals from which the commercially important plastic resins are derived are themselves derived from natural products that are quite plentiful; these raw materials include coal, water, limestone, sulfur, salt, and petroleum. True False There are two (2) types of polymerization; addition or linear and cross-linked or condensation. Addition polymers are thermoplastics and cross-linked polymers are thermosetting materials. True False
Three separate heat treatments were applied to Ç1040 steel as quenching, quenching + tempering and softening annealing. Can you explain the modulus of elasticity, yield strength, toughness and resilience in a cause and effect relationship by showing the bottom tensile curves in each case of the samples on the same diagram?
It is the lightest metal for general engineering applications and possesses good vibration damping characteristics.
Answer the following questions briefly,a) Compression tests are generally performed on brittle materials-why? b) How a cast iron specimen fails under compression load? c) Define secant modulus? d) Why alignment of the specimen is is important in compression test? e) Which is the IS code used for compression test on metals?
The chart below is for the properties of heat treated AISI 1340, oil quenched and tempered steel. Answer all five questions (numerical value) a) The tempering temperature associated with a tensile strength of 220,000 psi is ____________________ (b) The yield point associated with a % reduction of area of 60% is psi _____________________ (c) The tensile strength associated with a % elongation of 10% is psi ____________________ (d) The tensile strength associated with BD 331 is psi _______________________ (e) The HB number associated with a tensile strength of 245,000 psi is HB _____________________
the behaviour of graphite materials under stress
Discuss the effects of cooling rate on steel hardness when the sample experienced: Rapid cooling Slow cooling
Explain the coding system of the material 518M35.Specify the classification of carbon (000 to 199Carbon and carbon-manganese type steels. The number represents hundred times the manganese content 200 to 240Free-cutting steels, the second and third numbers representing hundred times the mean Sulphur content 300 to 499Stainless and heat resistant valve steels 500 to 999Alloy steels with different groups of numbers within this range being allocated to different alloys. Alloys 500 to 519 have nickel as the main alloying element, 520 to 539 have chromium.) [ A Steel is supplied to a chemical composition determined bychemical analysis H The steel is supplied to a hardenability specification M The steel is supplied to mechanical property specifications S The steel is stainless]
Explain the coding system of the material 518M35.Specify the classification of carbon (000 to 199Carbon and carbon-manganese type steels. The number represents hundred times the manganese content 200 to 240Free-cutting steels, the second and third numbers representing hundred times the mean Sulphur content 300 to 499Stainless and heat resistant valve steels 500 to 999Alloy steels with different groups of numbers within this range being allocated to different alloys. Alloys 500 to 519 have nickel as the main alloying element, 520 to 539 have chromium.) [ A Steel is supplied to a chemical composition determined bychemical analysis H The steel is supplied to a hardenability specification M The steel is supplied to mechanical property specifications S The steel is stainless] 26b) Search for a material, to be used as Insulator for electrical wire. by referring the property table given from the…
Note: Kindly give me both right answers. A) Did the ductile materials (annealed and aluminium) react differently to the two different testing methods (hardness test vs. tensile test)? What does this say about the behaviour of ductile materials in compression vs. tension? B) Did the brittle material (quenched) react differently to the two different testing methods (hardness test vs. tensile test)? What does this say about the behaviour of brittle materials in compression vs. tension? （Three to five sentence answers are good）（engineering material)