M6c1

22問 • 1年前

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問題一覧

Metals which contain iron is

ferrous metals

The carbon content in medium carbon steel is

0.3-0.8 %

A steel with 1.3 % carbon content is

a high carbon steel

Pearlite is a laminate microstructure of steel consisting of

ferrite and cementite.

Cementite is

Strong but hard and brittle.

Grinding of a steel reveals a dull but spark pattern (lots of forking)

It is likely to be high carbon steel

Plasticity

is the opposite to elasticity

Toughness is the opposite of

brittleness

is the ability to resist off-set (scissor action) loads

Shear strength

An Impact Test measures

toughness

The Charpy and Izod tests are types of

impact tests

The brinell hardness testers uses

a steel ball indenter

the effects of annealing steel

decrease in internal stress ,softening of the metal

Steel annealing process it

relieves internal stress suffered after engineering processes

Fatigue tests can be carried out

either on individual components or on complete aircraft structure

Case hardening is

heat-treating process of metal produces a hard, wear-resistant surface over a strong, tough core

Thermal conductivity

ability of a material to conduct a certain amount of heat within a given time, copper is a good example.

Normalizing heat treating

Iron- base metals

Nitriding of steel by

ammonia gas

the aluminum will have

a lower VPN than the steel

At normal temperature High Carbon Steel is harder because

of the percentage of carbon in the granules

a material to fracture when subjected to a shock loading or blow

a brittleness.

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問題一覧

Metals which contain iron is

ferrous metals

The carbon content in medium carbon steel is

0.3-0.8 %

A steel with 1.3 % carbon content is

a high carbon steel

Pearlite is a laminate microstructure of steel consisting of

ferrite and cementite.

Cementite is

Strong but hard and brittle.

Grinding of a steel reveals a dull but spark pattern (lots of forking)

It is likely to be high carbon steel

Plasticity

is the opposite to elasticity

Toughness is the opposite of

brittleness

is the ability to resist off-set (scissor action) loads

Shear strength

An Impact Test measures

toughness

The Charpy and Izod tests are types of

impact tests

The brinell hardness testers uses

a steel ball indenter

the effects of annealing steel

decrease in internal stress ,softening of the metal

Steel annealing process it

relieves internal stress suffered after engineering processes

Fatigue tests can be carried out

either on individual components or on complete aircraft structure

Case hardening is

heat-treating process of metal produces a hard, wear-resistant surface over a strong, tough core

Thermal conductivity

ability of a material to conduct a certain amount of heat within a given time, copper is a good example.

Normalizing heat treating

Iron- base metals

Nitriding of steel by

ammonia gas

the aluminum will have

a lower VPN than the steel

At normal temperature High Carbon Steel is harder because

of the percentage of carbon in the granules

a material to fracture when subjected to a shock loading or blow

a brittleness.