CAJ | 학술논문

通过表面增压喷丸处理,在35钢表面形成了厚40 μm的纳米晶层,对具有纳米晶层的试样进行气体软氮化.采用透射电镜、扫描电镜、X射线衍射仪等对35钢表面纳米晶组织及其软氮化渗层组织进行了观察与分析,并测试了渗层硬度.结果表明:经过增压喷丸处理的试样,化合物层厚度大约为原始试样的2倍,软氮化时间可由10h缩短为3 h;渗层硬度也有明显的提高.
통과표면증압분환처리,재35강표면형성료후40 μm적납미정층,대구유납미정층적시양진행기체연담화.채용투사전경、소묘전경、X사선연사의등대35강표면납미정조직급기연담화삼층조직진행료관찰여분석,병측시료삼층경도.결과표명:경과증압분환처리적시양,화합물층후도대약위원시시양적2배,연담화시간가유10h축단위3 h;삼층경도야유명현적제고.
The nano-crystalline layer with the thickness 40μm was formed on the surface of 35 steel by means of surface strengthens pressure shot penning. The samples were then gas soft-nitriding. The microstructure and performance of the soft-nitriding layers surfaces were analysed by TEM, SEM, XRD and microhardness was also tested. The results show that the compound layer of the strengthens pressure shot penning sample is about 2 times thicker than the original sample, the nitriding treatment time reduces to 3 hours from 10 hours. Hardness is also improved.