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本文介绍利用国产200KeV离子注入机,能量60～100KeV,剂量(2～8)×10~(17)/cm~2的氮离子注入,提高金属材料耐磨性的研究结果。YW_1硬质合金车刀,经离子注入后比没有注入的磨损减少一半,YG8钢丝拉丝模和YG3铜线扭丝模离子注入后的使用寿命分别提高2.2倍和2.4倍。利用X射线衍射仪,X射线应力分析仪,离子探针,扫描电镜等对离子注入后的金属表面分析结果表明:离子注入使金属表面晶格产生畸变,使金属表面产生应变硬化,注入杂质原子与位错交互作用,使位错被钉扎,位错运动受到阻碍,在磨损过程中,注入氮原子不断向内部推移,从而提高了材料的耐磨性。
In this paper, we introduce the research results of improving the wear resistance of metal materials by using domestic 200KeV ion implanter with energy of 60 ~ 100KeV and implantation dose of (2 ~ 8) × 10 ~ (17) / cm ~ 2. YW_1 Carbide turning tool halved the wear after ion implantation compared with no injection, and the service life of YG8 steel wire drawing die and YG3 copper wire twisted wire die increased by 2.2 times and 2.4 times respectively. The results of X-ray diffraction, X-ray stress analyzer, ion-probe and scanning electron microscope show that the metal surface is distorted by ion implantation, and the metal surface is strain-hardened and impurity atoms are implanted With the interaction of dislocations, the dislocations are pinned and the dislocation movement is hindered. During the wear process, nitrogen atoms are continuously injected into the interior to improve the wear resistance of the material.