Chapter 12, Problem 12.46P

Interpretation Introduction

(a)

Interpretation:

Whether A-10% B alloy is a good option for age hardening or not needs to be determined. If it is a good option, the required heat treatments with appropriate tempertures need to be explained.

Concept introduction:

Phase is defined as the homogeneous portion of the system having same physical and chemical characteristics.

A diagram which defines the existence of different phases of a system under equilibrium is known as phase diagram. It gives the relationship between composition and temperature.

The phase diagram is shown in figure,

Phase diagram represents the relation between composition of components in weight percent and temperature.

Answer to Problem 12.46P

The equivalent temperature range for heat treatment of alloy composed of is

Age hardening temperature should be below

Explanation of Solution

Given information:

Alloy composed of

Based on given information, using graph to determine the temperature,

The equivalent temperature range for heat treatment of alloy composed of is

Age hardening temperature should be below

Interpretation Introduction

(b)

Interpretation:

Whether A-20% B alloy is a good option for age hardening or not needs to be determined. If it is a good option, the required heat treatments with appropriate temperatures need to be explained.

Concept introduction:

Phase is defined as the homogeneous portion of the system having same physical and chemical characteristics.

A diagram which defines the existence of different phases of a system under equilibrium is known as phase diagram. It gives the relationship between composition and temperature.

The phase diagram is shown in figure,

Phase diagram represents the relation between composition of components in weight percent and temperature.

Answer to Problem 12.46P

The equivalent temperature range for heat treatment of alloy composed of is

Age hardening temperature should be below

Explanation of Solution

Given information:

Alloy composed of

Based on given information, using graph to determine the temperature,

The equivalent temperature range for heat treatment of alloy composed of is

Age hardening temperature should be below

Interpretation Introduction

(c)

Interpretation:

Whether A-55% B alloy is a good option for age hardening or not needs to be determined. If it is a good option, the required heat treatments with appropriate tempertures need to be explained.

Concept introduction:

Phase is defined as the homogeneous portion of the system having same physical and chemical characteristics.

A diagram which defines the existence of different phases of a system under equilibrium is known as phase diagram. It gives the relationship between composition and temperature.

The phase diagram is shown in figure,

Phase diagram represents the relation between composition of components in weight percent and temperature.

Answer to Problem 12.46P

The equivalent temperature range for heat treatment of alloy composed of is and alloy structure will be in brittle form.

Explanation of Solution

Given information:

Alloy composed of

Based on given information, using graph to determine the temperature,

The equivalent temperature range for heat treatment of alloy composed of is and alloy structure will be in brittle form.

Interpretation Introduction

(d)

Interpretation:

Whether A-87% B alloy is a good option for age hardening or not needs to be determined. If it is a good option, the required heat treatments with appropriate temperatures need to be explained.

Concept introduction:

Phase is defined as the homogeneous portion of the system having same physical and chemical characteristics.

A diagram which defines the existence of different phases of a system under equilibrium is known as phase diagram. It gives the relationship between composition and temperature.

The phase diagram is shown in figure,

Phase diagram represents the relation between composition of components in weight percent and temperature.

Answer to Problem 12.46P

The equivalent temperature range for heat treatment of alloy composed of is and alloy is cooled and transformed to single phase region.

Explanation of Solution

Given information:

Alloy composed of

Based on given information, using graph to determine the temperature,

The equivalent temperature range for heat treatment of alloy composed of is and alloy is cooled and transformed to single phase region.

Interpretation Introduction

(e)

Interpretation:

Whether A-95% B alloy is a good option for age hardening or not needs to be determined. If it is a good option, the required heat treatments with appropriate temperatures need to be explained.

Concept introduction:

Phase is defined as the homogeneous portion of the system having same physical and chemical characteristics.

A diagram which defines the existence of different phases of a system under equilibrium is known as phase diagram. It gives the relationship between composition and temperature.

The phase diagram is shown in figure,

Phase diagram represents the relation between composition of components in weight percent and temperature.

Answer to Problem 12.46P

The equivalent temperature range for heat treatment of alloy composed of is and alloy contains only single phase so it cannot be age hardened.

Explanation of Solution

Given information:

Alloy composed of

Based on given information, using graph to determine the temperature,

The equivalent temperature range for heat treatment of alloy composed of is and alloy contains only single phase so it cannot be age hardened.