物料及其特性：练习题

Which of the following materials is classified as a ferrous metal?

A manufacturer wants to improve the hardness and strength of a low carbon steel component. Which process would be most effective for achieving this change in mechanical properties?

A structural engineer is comparing the stiffness of two different material samples. Sample A has a cross-sectional area of \(200\text{ mm}^2\) and an original length of \(1.5\text{ m}\). When a tensile load of \(10\text{ kN}\) is applied, it extends by \(0.5\text{ mm}\).

Calculate the Young\'s Modulus \(E\) of Sample A in \(\text{kN/mm}^2\).

Which property of an engineering material describes its ability to be deformed by a compressive force, such as being hammered or rolled into thin sheets, without cracking?

In the context of composite materials, such as Glass Reinforced Plastic (GRP), which factor most significantly determines the directional strength of the final material?

Explain how the addition of alloying elements can change the mechanical properties of a pure metal such as copper or aluminium.