CAJ | 학술논문

采用压制烧结技术制备一种新型 Fe-Cu 基金刚石复合材料超薄锯片；分别用 XRD、SEM、拉曼光谱测试分析锯片的断面物相、断口形貌、金刚石/胎体界面的元素分布和金刚石机械包镶力。结果表明：金刚石/胎体界面存在铁的碳化物；由金刚石静应力公式算得金刚石的机械包镶力为387 MPa，由于胎体冷却时发生塑性变形以及界面处金刚石/铁碳化物间存在晶格错配，释放热应力，使得包镶力绝对值远小于热残余应力(4.6 GPa)的绝对值。
채용압제소결기술제비일충신형 Fe-Cu 기금강석복합재료초박거편；분별용 XRD、SEM、랍만광보측시분석거편적단면물상、단구형모、금강석/태체계면적원소분포화금강석궤계포양력。결과표명：금강석/태체계면존재철적탄화물；유금강석정응력공식산득금강석적궤계포양력위387 MPa，유우태체냉각시발생소성변형이급계면처금강석/철탄화물간존재정격착배，석방열응력，사득포양력절대치원소우열잔여응력(4.6 GPa)적절대치。
An new Fe-Cu based diamond composite ultra thin saw blade was prepared by conventional cold compaction sintering technology. The phase composition, morphology of fracture surface, elemental distribution near the diamond/matrix phase boundary, and mechanical retention force were investigated by X-ray diffractometry (XRD), scanning electron microscopy (SEM) in combination with energy dispersive spectrometry (EDS), and Raman spectroscopy, respectively. The results show that Fe carbides are found at the diamond/matrix phase boundary. The mechanical retention reaches 387 MPa, the absolute value of which is much lower than that of thermal residual stresses of about 4.6 GPa. It is resulted from relaxation stress by plastic deformation of matrixes during cooling and lattice distortions of diamond and Fe carbides at the diamond /matrix phase boundary.