Expertise
● Hardness
The ability of the material to locally resist hard objects pressed into its surface is called hardness，mainly using Rockwell or Vickers hardness measurement method，two kinds of hardness value conversion need to pay attention to conversion.
● Coercive Field Strength
Coercive Field Strength is a measure of the residual magnetism in the hysteresis loop when the Cobalt (Co) binder in grade of cemented carbide is magnetized and then demagnetized. It can be used to assess the status of alloy organization. The finer the grain size of the carbide phase the higher will be the coercive force value.
● Magnetic Saturation
Magnetic Saturation：is the ratio of magnetic intensity to quality. Magnetic Saturation measurements on the Cobalt (Co) binder phase in cemented carbide are used by the industry to evaluate its composition. Low Magnetic Saturation values indicate a low carbon level and/or the presence of Eta-Phase Carbides. High Magnetic Saturation values indicate the presence of"free-carbon".
● Density
The Density (specific gravity) of a material is the ratio of its mass to its volume. It is measured using a water displacement technique. Cemented carbide density decreases linearly with increasing Cobalt content for the Wc-Co grades.
● Transverse Rupture Strength
Transverse Rupture Strength (TRS) is the ability of material to resist bending, measured at t he breaking point of a material in a standard three point bend test.
● Fracture toughness
When materials are exposed to external stresses (static or dynamic) , this results in the appearance of mechanical tension. Fracture toughness characterizes the ability of a material to prevent crack propagation,that is, the ability of a material to resist breakage and fracture, and is usually expressed as KIC.
● Metallographic Analysis
Cobalt Lakes will bond after sintering, excess cobalt may exist in certain area of the structure, forming the cobalt pool; If bonding phase is incompletely adhesive, there will form some residual pores. Cobalt pools and porosity can be detected by using metallographic microscope.
X100
X1500
X30000
● Hardness
The ability of the material to locally resist hard objects pressed into its surface is called hardness，mainly using Rockwell or Vickers hardness measurement method，two kinds of hardness value conversion need to pay attention to conversion.
● Coercive Field Strength
Coercive Field Strength is a measure of the residual magnetism in the hysteresis loop when the Cobalt (Co) binder in grade of cemented carbide is magnetized and then demagnetized. It can be used to assess the status of alloy organization. The finer the grain size of the carbide phase the higher will be the coercive force value.
● Magnetic Saturation
Magnetic Saturation：is the ratio of magnetic intensity to quality. Magnetic Saturation measurements on the Cobalt (Co) binder phase in cemented carbide are used by the industry to evaluate its composition. Low Magnetic Saturation values indicate a low carbon level and/or the presence of Eta-Phase Carbides. High Magnetic Saturation values indicate the presence of"free-carbon".
● Density
The Density (specific gravity) of a material is the ratio of its mass to its volume. It is measured using a water displacement technique. Cemented carbide density decreases linearly with increasing Cobalt content for the Wc-Co grades.
● Transverse Rupture Strength
Transverse Rupture Strength (TRS) is the ability of material to resist bending, measured at t he breaking point of a material in a standard three point bend test.
● Fracture toughness
When materials are exposed to external stresses (static or dynamic) , this results in the appearance of mechanical tension. Fracture toughness characterizes the ability of a material to prevent crack propagation,that is, the ability of a material to resist breakage and fracture, and is usually expressed as KIC.
● Metallographic Analysis
Cobalt Lakes will bond after sintering, excess cobalt may exist in certain area of the structure, forming the cobalt pool; If bonding phase is incompletely adhesive, there will form some residual pores. Cobalt pools and porosity can be detected by using metallographic microscope.
X100
X1500
X30000
