Test Background
The room temperature compression test of metal materials can determine the specified plastic compression strength, specified total compressive strength, upper compression yield strength, lower compression yield strength, compression elastic modulus and compressive strength of metal materials under unidirectional compression at room temperature.
Zhongke Testing Reliability Experiment Center has the capabilities of environmental testing and reliability performance testing of various metal materials, and provides professional room temperature compression testing services for metal materials.
Scope of tests
Metal materials are divided into two categories: ferrous metals and non-ferrous metals.
Ferrous metals are steel materials. In industrial production, iron and its alloys are usually called ferrous metals, such as steel, pig iron, iron alloys, cast iron, etc.;
Nonferrous metals are metal materials other than steel, such as aluminum, titanium, copper, zinc, manganese, etc., and in a broad sense include nonferrous alloys.
Test method
1. Determine the relevant compressive mechanical properties by applying increasing unidirectional compressive force to the specimen in the axial direction.
2. For a testing machine with strain control, set the strain rate to 0.005 min-1. For load-controlled or beam displacement-controlled testing machines, it is allowed to set a speed equivalent to a strain rate of 0.005 min-1. If the material is strain rate sensitive, a speed of 0.003 min-1 can be used.
3. For systems without strain control, maintain a constant beam displacement rate to achieve the average strain rate required during the test. A constant beam displacement rate during the test does not guarantee a constant strain rate during the test. No matter which method is used, a constant rate should be used and no sudden changes are allowed.
Test standard:
GB/T 7314-2017 Metallic materials - Room temperature compression test method
GB/T8170 Numerical rounding rules and representation and determination of limit values
GB/T 10623 Metallic Materials Mechanical Property Test Terminology
GB/T 12160 Calibration of extensometers for uniaxial testing
GB/T 16825.1 Inspection of static uniaxial testing machines Part 1: Inspection and calibration of force measuring systems of tensile and/or compression testing machines
DIN 50134-2008 Testing of metallic materials Compression test of metallic porous materials
