共搜索到18804条信息，每页显示10条信息，共1881页。用时：0小时0分0秒486毫秒
atmospheric conditions at 25-200 ℃ and loads of 12.5-300 N were performed for AM60B alloy. The wear rate increases with increasing the load; the mild-to-severe wear transitions occur under the loads of 275 N at 25 ℃, 150 N at 100 ℃ and 75 N at 200 ℃, respectively. However, as the load is less than 50 N, the wear rate at 200 ℃ is lower than that at 25 ℃ or 100 ℃. In mild wear regimes, the wear mechanisms......
......
......
at the room temperature has been tested and its wear mechanism has been studied.The results show that with the increase of the load and sliding speed,the wear rate of the as-cast Ti-50Al alloy rises and the friction coefficient declines.When sliding speed is lower than 1.0 m/s the wear rate of the FL Ti-50Al alloy increased with the load and sliding speed,but the friction coefficient is relatively......
and vibrating(SRV) machine. SiCp/Cu composites slid against hardened GCr15 bearing steel ball in the load range of 40-200 N. The results show that the wear rate increases with increasing porosity... abrasion is the controlling wear mechanism. In addition, porosity has more important influence on wear rate at high load than at low load. This is associated with the fact that the fracture and spalling......
serious the abrasion of the pipeline would be because of the increase of the energy consumption on the unit area. The relation between the deflection rate of drill-hole and the wear of CVBH can be well... Wear mechanism and serious wear position of casing pipe in vertical backfill drill-hole ZHANG Qin-li1, CUI Ji-qiang1, 2, ZHENG Jing-jing1, WANG Xin-min1, WANG Xian-lai1, 2 1. School of Resources......
roughs the surface of coating and leads to local asperities that will accelerate the wear rate. The HVAS 321 coating also reveals the characteristic of splat delamination under the oil lubricated... Structure and sliding wear behavior of 321 stainless steel/Al composite coating deposited by high velocity arc spraying technique CHEN Yong-xiong(陈永雄), XU Bin-shi(徐滨士), LIU Yan(刘 燕), LIANG Xiu......
and sulphided samples. Results show: The surface roughness,wear rate, average friction coefficient and magnitude of friction fluctuations of LY 12 aluminum alloy cirque sliding against sulphided sample... condition, friction coefficient and wear loss of LY12 aluminum alloy were measured in sliding against samples of 16Mn treated by cubrizing and sulphiding respectively; In order to avoid the transfer......
with good wear resistance was created in an Al2O3-CaCO3-SiO2-MgO-La2O3(ACSML) system. The effects of La2O3 content on sintering temperature, bulk density, and wear rate were investigated. The wear rate...Effect of La2O3 content on wear resistance of alumina ceramics吴婷婷1,周建1,吴伯麟2,李文杰21. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology2......
with good wear resistance was created in an Al2O3-CaCO3-SiO2-MgO-La2O3(ACSML) system. The effects of La2O3 content on sintering temperature, bulk density, and wear rate were investigated. The wear rate...Effect of La2O3 content on wear resistance of alumina ceramics吴婷婷1,周建1,吴伯麟2,李文杰21. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology2......
