Factors Affecting Strength in Metals

The strength of the material is very sensitive to various external and internal factors. Small changes to these factors will cause fluctuations or even large changes in material performance. There are several factors that affect the strength of the metal, including:

1. Size
   Due to the inhomogeneous structure of the material and the presence of internal defects, increasing the size will increase the probability of material failure, thereby reducing the strength limits of the material. The existence of the size effect is an important problem in the application of fatigue data from small specimens in the laboratory to large-scale practicum tools.

2. Chemical Composition
   There is a close relationship between fatigue strength and tensile strength under certain conditions. Therefore, under certain conditions, all alloy elements that can increase the tensile strength can increase the fatigue strength of the material. Comparatively, carbon is the most important factor affecting the strength of a material. However, some impurity elements that form inclusions in steel have a detrimental effect on fatigue strength.

3. Heat Treatment in Microstructure
   Different heat treatment conditions will get different microstructure, so that the effect of heat treatment on fatigue strength is basically the effect of the microstructure. Although the same static strength can be obtained for materials of the same composition due to different heat treatments, the fatigue strength can vary over a fairly large range due to different microstructure. At the same strength level, the fatigue strength of flake pearlite is markedly lower than that of granular pearlite. The smaller the cementite particles, the higher the fatigue strength. The effect of microstructure on the fatigue properties of materials is not only related to the mechanical properties of various structures, but also to the grain size and distribution characteristics of the structure in the composite structure. Granular refinement can increase the fatigue strength of the material.

The influence of various factors on strength is an important aspect in knowing what factors influence the strength of a metal. Among them are size, chemical composition, and heat treatment of the microstructure. Duta Laserindo Metal always pays attention to the strength of the metal material that will be processed according to your wishes. If you need a fabrication process for your product, please contact us and get a quality product that is done by experts in their fields.