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| 1 | Cavitation Erosion Behavior of CrMnN Duplex Stainless Steel in Distilled Water and 3% NaCl Solution显示文摘The cavitation erosion (CE) behavior of CrMnN ferrite-austenite duplex stainless steel in distilled water and 3% NaCl solution was investigated by using a magnetostrictive-induced CE facility. The damaged surfaces were observed by scanning electron microscope (SEM). It was found that the CE resistance of CrMnN steel was higher than that of 0Cr13Ni5Mo steel. The mass loss rate of CrMnN steel in distilled water was similar to that in 3% NaCl except at the early stage of CE. The failure mode of ferrite phase was brittle fracture, which had adverse effect on the resistance to CE, while the failure of austenite phase was a ductile failure in CrMnN steel. The excellent resistance to CE was related to the good mechanical properties of austenitic phase and the consumption of CE energy by plastic deformation involving slip and twinning. | Suzhen LUO, Yugui ZHENG, Wei LIU, Heming JING, Zhiming YAO and Wei KEState Key Laboratory for Corrosion and Protection, Institute of Metai Research, Chinese Academy of Sciences, Shenyang 110016, China | 2003 | Journal of Materials Science & Technology2003，19，4： | 1 |
| 2 | Erosion - Corrosion of Various Oil - refining Materials in Naphthenic Acid显示文摘 | Wu Xinqiang Jing Heming Zheng Yugui | 2004 | Wear2004，256，： | 1 |
| 3 | Erosion-corrosion of various oil-refining materials in naphthenic acid显示文摘 | Xinqiang Wu Heming Jing Yugui Zheng | 2004 | Wear2004，256，： | 1 |
| 4 | Erosion - Corrosion of Various Oil - refining Materials in Naphthenic acid 显示文摘 | Wu Xinqiang Jing Heming Zheng Yugui | 2004 | Wear2004，256，： | 1 |
| 5 | Erosion--corrosion of various oil--refining materials in naphthenic acid 显示文摘 | Xinqiang Wu Heming Jing Yugui Zheng | 2004 | Wear2004，256，12： | 1 |
| 6 | Erosion- Corrosion of Q235 and 5Crl/2Mo Steels in Oil with Naph- thenic Acid and/or Sulfur Compound at High Temperature 显示文摘 | Qu Dingrong Zheng Yugui Jing Heming | 2005 | MaterCorros2005，56，8： | 1 |
| 7 | Heading constraint algorithm for foot-mounted PNS using low-cost IMU显示文摘Foot-mounted pedestrian navigation system(PNS)is a common solution to pedestrian navigation using micro-electro mechanical system(MEMS)inertial sensors.The inherent problems of inertial navigation system(INS)by the traditional algorithm,such as the accumulated errors and the lack of observation of heading and altitude information,have become obstacles to the application and development of the PNS.In this paper,we introduce a heuristic heading constraint method.First of all,according to the movement characteristics of human gait,we use the generalized likelihood ratio test(GLRT)detector and introduce a time threshold to classify the human gait,so that we can effectively identify the stationary state of the foot.In addition,based on zero velocity update(ZUPT)and zero angular rate update(ZARU),the cumulative error of the inertial measurement unit(IMU)is limited and corrected,and then a heuristic heading estimation is used to constrain and correct the heading of the pedestrian.After simulation and experiments with low-cost IMU,the method is proved to reduce the localization error of end-point to less than 1%of the total distance,and it has great value in application. | GUI Jing ZHAO Heming XU Xiang | 2022 | Journal of Systems Engineering and Electronics2022，33，3： | 1 |
| 8 | Erosion–corrosion of various oil-refining materials in naphthenic acid显示文摘 | Xinqiang Wu Heming Jing Yugui Zheng Zhiming Yao Wei Ke | 2003 | Wear2003，，1： | 1 |
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