声发射技术对于检测氮化层的脆性具有突出的优越性。它可以在另件或试样受力状态下确定氮化层断裂的开裂点。如果与力学性能试验配合,就可以计算出氮化层开裂以前试样吸收的能量和氮化层的断裂强度,进而可以衡量不同材料或不同氮化工艺处理后氮化层的脆性,有利于优选材料和热处理工艺。 Acoustic emission technology for the detection of brittle nitride layer has outstanding advantages. It can be in another piece or specimen under stress state nitride layer rupture cracking point. If combined with the mechanical property test, the energy absorbed by the sample and the fracture strength of the nitride layer before the nitride layer cracking can be calculated, and then the brittleness of the nitride layer after processing different nitriding processes or different materials can be measured. Materials and heat treatment process.