Tribological Characterization of Commercial Pure Titanium Processed by Multi-Directional Forging

来源 :金属学报(英文版) | 被引量 : 0次 | 上传用户:nicop
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
This work discusses tribological properties of commercial pure (CP) titanium processed by multi-directional forging (MDF) up to six passes at room temperature and 220 ℃.For this purpose,wear test was conducted by dry sliding pin-on-disk method on the initial and ultrafine grained samples using different stress magnitudes of 1,1.5 and 2 MPa.The results showed that wear resistance of CP titanium increases after the first pass of MDF in comparison with the initial condition,irrespective of the applied normal stress.For example,the average wear rate of MDFed samples was decreased about 30% and 24%,after first pass at room temperature and 220 ℃,respectively.However,average wear rate of the samples processed by six MDF passes was reduced about 40% at lower normal loads;it was increased about 9% at higher ones as compared to the initial condition.It was also found that the dominated wear mechanisms were abrasive and delaminated at the lower stresses,while the delamination mechanism was intensified and a slight adhesion was observed during the higher applied normal loads.
其他文献
The influence of processing temperature on grain size reduction in AA 6063 aluminum alloy subjected to repetitive corrugation and straightening (RCS) is investigated in this work.The aluminum alloy was processed by RCS at different temperatures (room temp
In this study,powder mixtures containing (Ti,W)C additions (10,20,30 and 40 wt%) were prepared and then consolidated at 1200,1250,1300 and 1350 ℃ by spark plasma sintering.The effect of (Ti,W)C additions on the microstructure and mechanical properties of
The effect of pH on the electrochemical behaviour and passive film composition of 316L stainless steel in alkaline solutions was studied using electrochemical measurements and a surface analysis method.The critical pH of 12.5 was found for the conversion
A CoCrFeMnNi high-entropy alloy with a high content of carbon was synthesized,and its hot deformation behavior was studied at the temperatures 800-1000 ℃ at the strain rates ranging from 0.001 to 0.1 s-1.As-prepared alloy is a face-centered cubic-structur
The effect of short-time aging in the temperature range between 400 and 1000 ℃ on the pitting corrosion behavior and mechanical property of a novel lean duplex stainless steel (LDSS) 2002 was investigated through the potentiostatic critical pitting temper
The influence of Fe on the microstructure and mechanical properties of P-doped Ni-Cr-Fe alloys has been investigated.Results showed that increasing Fe content refined the dendrite microstructure and enhanced the solubility of P in as-cast alloys.The chang
Tensile properties,microstructural evolution and fracture toughness of Al 2014 alloy subjected to cryorolling followed by warm rolling (CR + WR) have been investigated in the present study.The solution-treated (ST) Al 2014 alloy is cryorolled followed by
The Ni3Al-based superalloy was rapidly solidified in the form of droplets with varying diameters.The cooling rate (Re) is a function of diameter (D) of droplet.With the decrease in droplet sizes (increase in the cooling rates),the volume fraction of γ\'
Compared to the traditional one-by-one method,a new high-efficiency method is used to characterize large numbers of regulations varying samples.Accordingly,bump-shaped electrodes are designed using the computational fluid dynamics model,and the effect of
As-extruded Mg-Sr alloy,a kind of promising biodegradable biomedical material,was coated using micro-arc oxidation and also using a phosphate conversion coating.The corrosion behaviors were investigated using Hanks\' solution.The corrosion of the as-ext