【摘 要】
：
A novel approach to produce an intermetallic composite coating was put forward.The microstructure,microhardness,and dry-sliding wear behavior of the composite c
【机 构】
：
National Center of Analysis and Testing for Non-ferrous Metals & Electronic Materials,Institute of M
论文部分内容阅读
A novel approach to produce an intermetallic composite coating was put forward.The microstructure,microhardness,and dry-sliding wear behavior of the composite coating were investigated using X-ray diffraction (XRD),scanning electron microscopy (SEM),energy dispersive spectrum (EDS) analysis,microhardness test,and ball-on-disc wear experiment.XRD results indicate that some new phases FeAl,Fe0.23Ni0.77Al,and Ni3Al exit in the composite coating with the Al2O3 addition.SEM results show that the coating is bonded with carbon steel metallurgically and exhibits typical rapid directional solidification structures.The Cr7C3 carbide and intermetallic compounds co-reinforced composite coating has a high average hardness and exhibits an excellent wear resistance under dry-sliding wear test compared with the Cr7C3 carbide-reinforced composite coating.The formation mechanism of the intermetallic compounds was also investigated.
其他文献
目的 探讨危重症患者床旁肌电图检查的特点及其应用价值.方法 收集肢体无力伴呼吸困难而疑诊神经肌肉病的危重患者,采用便携式肌电图仪进行床旁检查.测定项目包括节段性运动
背景和目的 本指南旨在为动脉瘤性蛛网膜下腔出血(aneurysmal subarachnoid hemorrhage,aSAH)的诊断和治疗提供最新的全面推荐意见.方法 对MEDLINE数据库进行正式的文献检索(
目的 探讨影响脑动静脉畸形显微手术疗效的临床因素. 方法 收集自2003年1月1日至2009年12月31日南昌大学第一附属医院神经外科、张家界市人民医院神经外科显微外科手术治疗的
Planning and production optimization within multiple mines or several work sites (entities) mining systems by using fuzzy linear programming (LP) was studied. L
理工科大学人文社会科学研究相较于综合性大学有其自身的特点，只有正确认识和分析这些特点，才能研究制定相应的发展战略和政策措施。
We report the laser output of transparent Nd:YAG (Nd:Y3Al5O12) ceramics fabricated from Nd:YAG precursors through the microwave-assisted homogenous precipitatio
A simplified approach is presented for the analysis of the settlement of vertically loaded pile groups.In order to simulate the nonlinear pile-to-pile interacti
目的 评估血浆D-二聚体(D-dimer,D-D)和纤维蛋白原(fibrinogen,Fg)及其二者比值(D/F值)在人工关节置换术后急性下肢深静脉血栓形成(deep vein thrombosis,DVT)中的诊断价值.
The thermal behaviors of single laterite ore and graphite-laterite mixtures were investigated by thermogravimetry (TG),derivative thermogravimetry (DTG),and dif
The dissolution behavior of CaO-MgO-SiO2 glass fiber was investigated by scanning electron microscopy (SEM),Fourier-transform infrared spectrometer (FTIR) and i