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- The carbides of the alloyed layer were compact, uniform and dispersed without coarse eutectic Ledeburite structure. 渗层中的碳化物细小、均匀、弥散,没有粗大的共晶莱氏体组织;
- Microstructures of the carburized alloyed layer are analysised in detail by TEM. 对渗金属层渗碳后的组织进行了电子显微分析。
- Alloyed layer was formed on the surface of titanium by hydrogen-free carburizing using net-shape double cathode method. 采用网状双阴极法对纯钛表面进行离子无氢渗碳,在纯钛表面形成冶金结合的高硬度合金渗层;
- The alloyed layer composition was similar to that of molybdenum containing high speed steels. 结果表明:渗层化学成分接近钼系高速钢;
- Finally, the wear-resisting and corr is ion-res is ting properties of the alloyed layer Were exam ined. 并测定了渗层的耐磨性及耐蚀性。
- The bond between the titanium base and alloyed layer is very good and without stripping. 划痕试验显示渗层与基体结合好、无剥离现象。
- The results show that significant improvement of microstructure and wear resistance of M80S20 laser alloyed layer have been achieved by adding CeO2. 结果表明:通过添加CeO_2明显改善了M_(8)oS_(20)激光合金化层的显微组织和耐磨性。
- In this paper, the influence of CeO2 on the microstructure and wear resistance of M80S20 laser alloyed layer was studied by comparative testing. 本文通过对比试验,研究了CeO_2对M_(80)S_(20)激光合金化层的显微组织和耐磨性的影响。
- Hardness testing shows that the hardness of the surface reaches 1050HK.The hardness of the alloyed layer emerges in gradient distribution. 硬度检测表明纯钛表面硬度可达1050HK,合金渗层硬度呈梯度分布;
- GDS testing results indicate the carbon content of the surface reaches 29.8%, the carbon content in the alloyed layer emerges in gradient distribution too. 辉光放电光电子谱仪(GDS)渗层成分检测结果表明表面含碳量可达29.;8%25;合金渗层的碳含量也呈梯度分布;
- The relationship between the microstructure of laser alloyed layer, the distributions of compositions in laser alloyed layer and the Ni contents was analyzed by observation of SEM, EDX,X-ray diffradometer & micro-hadometer. 通过扫描电镜,能谱分析、X光物相分析及显微硬度测定对激光表面合金化层的结构及合金元素的分布随与镍含量的关系进行了研究。
- The flexural strength reaches 1?980 MPa,the impact energy is up to 18 J/cm~2 and the hardness achieves 50.In view of the feature of the fracture surface,the matrix shows obviously dimple feature while the fracture mode of high alloyed layer is brittle. 双层烧结铁基材料综合了高合金层和基体层的优点,抗弯强度达1 980 MPa,冲击韧性达18 J/cm2,洛氏硬度为50。
- Mo alloy layer is formed by double glow plasma alloying process. 然后作固溶处理,使金属间化合物溶于基体中;
- Results showed that satisfactory alloyed layer could be also formed on steel castings without adding fusing agent into alloy coating. 研究表明,合金涂层中不加熔剂也能形成质量较好的合金层;
- The carburized alloyed layer possesses high density of finery and dispersed alloy carbides for the high concentrations of W, Mo and their affinities with carbon. 经淬火及回火后的合金层具有高速钢组织及性能。
- The etching liquid etches the gold or gold alloy layer existing between the columns evenly. 该蚀刻液均匀蚀刻柱之间存在的金或金合金层。
- STUDY ON THE WEAR RESISTANCE OF CAST-ON SURFACE ALLOYED LAYER 铸件表面合金化合金层组织及耐磨性能研究
- The results showed that alloy layer peeling of thrust washer was mainly caused by poor adhesion between alloy layer and steel back. 结果表明,造成止推垫片合金层产生剥落的主要原因是合金层与钢背之间的结合强度较低;
- The compositions and microstructure of surface alloying layer wereinvestigated by the advanced means of XRD,SEM,BES,EDS. 其中渗层的成分分布、显微特征、结构形貌采用了先进的XRD、SEM、BSE,EDS等手段进行了检测分析。
- Keywords hotdip aluminizing;alloyed layer;hardness;diffusion; 热浸镀铝;合金层;硬度;扩散;