The new testing system is capable of doing very fine fatigue tests on the metallographic level.
由此研制的疲劳试验装置，能够在金相级的水平上进行十分精细的疲劳试验。
2
The welded joints were completed by the X-ray test, mechanical properties tests and metallographic analysis.
焊后对焊接接头进行了射线检测、力学性能测试、接头金相组织分析。
3
Tensile tests, metallographic analyses and micro-Vickers tests were carried out to evaluate the mechanical properties of the joints as a function of the process parameters.