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学者姓名:徐滨士
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Abstract :
Centrifugal self-propagation high-temperature synthesis (SHS) is a newly developed composite preparation technique by which a ceramic-alloy-carbon steel multilayer composite tube can be prepared. The hot deformation behaviors of the alloy steel layer at 800 degrees C-1000 degrees C, strain rates of 0.01 s(-1), 0.1 s(-1), 1.0 s(-1)and 10 s(-1)were studied by Gleeble-1500 thermal simulator. Rheological curve characteristics were analyzed under different thermal compression processes and a phenomenological hyperbolic sinusoidal Arrhenius constitutive equation was established to characterize the rheological mechanics of the material. The results show that the alloy steel is sensitive to temperature and strain rate, and its value of true stress decreases with the increase of temperature and strain rate. Thermal deformation process is the interaction between work hardening and dynamic softening, which is accompanied by the increase and extinction of dislocations. Under the strain rate of 10 s(-1), the stress-strain curve has a significant decrease when the strain exceeds 0.5. According to the observation of microstructure, this phenomenon can be attributed to the micro-crack generated by the local instability flow in the denatured zone. With the strain rate decreases, the softening mechanism of the alloy changes from dynamic recovery to dynamic recrystallization. The calculation results of the Arrhenius constitutive equation (AARE = 6.54 %,R = 0.99452) indicate that the model can predict the flow stress of the alloy accurately.
Keyword :
dynamic recovery dynamic recovery Centrifugal self-propagating high-temperature synthesis (Centrifugal SHS) Centrifugal self-propagating high-temperature synthesis (Centrifugal SHS) constitutive equation constitutive equation correlation coefficient correlation coefficient rheological mechanical behavior rheological mechanical behavior
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GB/T 7714 | Wang, S. -z. , Liang, Y. , Wei, S. -c. et al. High temperature flow behavior and constitutive model of alloy transition layer in composite steel tube prepared by centrifugal self-propagating high-temperature synthesis (SHS)Verhalten bei hohen Temperaturen und Modell der Legierungsubergangsschicht in Verbundstahlrohr, hergestellt durch zentrifugale selbstpropagierende Hochtemperatursynthese (SHS) [J]. | MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK , 2020 , 51 (10) : 1412-1422 . |
MLA | Wang, S. -z. et al. "High temperature flow behavior and constitutive model of alloy transition layer in composite steel tube prepared by centrifugal self-propagating high-temperature synthesis (SHS)Verhalten bei hohen Temperaturen und Modell der Legierungsubergangsschicht in Verbundstahlrohr, hergestellt durch zentrifugale selbstpropagierende Hochtemperatursynthese (SHS)" . | MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK 51 . 10 (2020) : 1412-1422 . |
APA | Wang, S. -z. , Liang, Y. , Wei, S. -c. , Guo, Y. -f. , Xu, B. -s. . High temperature flow behavior and constitutive model of alloy transition layer in composite steel tube prepared by centrifugal self-propagating high-temperature synthesis (SHS)Verhalten bei hohen Temperaturen und Modell der Legierungsubergangsschicht in Verbundstahlrohr, hergestellt durch zentrifugale selbstpropagierende Hochtemperatursynthese (SHS) . | MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK , 2020 , 51 (10) , 1412-1422 . |
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Abstract :
一种测试热加载条件下复合管结合强度的装置及方法,属于复合管结合强度性能测试技术领域。包括高强度承压框架、压力系统、加热保温箱、可调节支架;压力系统固定在高强度承压框架内;变径压头插入加热保温箱,将待测试的复合管放置于变径压头上,变径压头的上端面只与待测试复合管的内管下端面接触,加热保温箱箱体高度与测试管段上端面基本平齐,盖上加热保温箱上盖,加热保温箱上盖与高强度框架接触,加热保温箱上盖的下表面只与待测试复合管的外管上端面接触;打开加热保温箱电源,升温至所需的测试温度,温度稳定后保温,加载压力,观察压力变化,当压力达到最大值开始明显下降时,说明复合管已经发生了剪切破坏,记录此过程的压力值。
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GB/T 7714 | 王守泽 , 徐滨士 . 一种测试热加载条件下复合管结合强度的装置及方法 : CN201910815840.6[P]. | 2019-08-30 . |
MLA | 王守泽 et al. "一种测试热加载条件下复合管结合强度的装置及方法" : CN201910815840.6. | 2019-08-30 . |
APA | 王守泽 , 徐滨士 . 一种测试热加载条件下复合管结合强度的装置及方法 : CN201910815840.6. | 2019-08-30 . |
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Abstract :
一种测试热加载条件下复合管结合强度的装置及方法,属于复合管结合强度性能测试技术领域。包括高强度承压框架、压力系统、加热保温箱、可调节支架;压力系统固定在高强度承压框架内;变径压头插入加热保温箱,将待测试的复合管放置于变径压头上,变径压头的上端面只与待测试复合管的内管下端面接触,加热保温箱箱体高度与测试管段上端面基本平齐,盖上加热保温箱上盖,加热保温箱上盖与高强度框架接触,加热保温箱上盖的下表面只与待测试复合管的外管上端面接触;打开加热保温箱电源,升温至所需的测试温度,温度稳定后保温,加载压力,观察压力变化,当压力达到最大值开始明显下降时,说明复合管已经发生了剪切破坏,记录此过程的压力值。
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GB/T 7714 | 王守泽 , 徐滨士 . 一种测试热加载条件下复合管结合强度的装置及方法 : CN201910815840.6[P]. | 2019-08-30 . |
MLA | 王守泽 et al. "一种测试热加载条件下复合管结合强度的装置及方法" : CN201910815840.6. | 2019-08-30 . |
APA | 王守泽 , 徐滨士 . 一种测试热加载条件下复合管结合强度的装置及方法 : CN201910815840.6. | 2019-08-30 . |
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Abstract :
The anticorrosion mechanism of Al-Ti-Si-RE coating in the environment of simulated deep sea was investigated using electrochemical measurement and micro-analysis. The result shows that Al-Ti-Si-RE coating possesses better corrosion resistance at hydrostatic pressure than at atmospheric pressure. After 480 h immersion at 3 MPa, a platform similar to a passivation region occurs in the anode of the potentiodynamic polarization curve because corrosion products block the corrosion channels. At the same time, at hydrostatic pressure, electrochemical impedance spectroscopy (EIS) indicates that Al passive film dissolves within 6 h of immersion, then tends to be stable after 12 h, and hardly changes between 300 and 480 h. To further analyze the original corrosion process, electrochemical noise (EN) of 0 similar to 64 ks at 0.1 and 3 MPa was measured, which quantificationally described the corrosion process from passive film dissolving to corrosion product fast-forming to stabilization. From morphology observation and X-ray diffraction (XRD) analysis, the rich Ti phase (Ti-Al intermetallics, etc) of the coating is cellular and has good corrosion resistance, whose construction could fix the Al oxide inside the coating, and thicken the coating to inhibit the corrosion.
Keyword :
coating coating deep sea corrosion deep sea corrosion electrochemical measurements electrochemical measurements high velocity arc spraying high velocity arc spraying micro-analysis micro-analysis
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GB/T 7714 | Tong Hui , Wei Shicheng , Liu Yi et al. Anti-corrosion Mechanism of Al-Ti-Si-RE Coating in the Pressure Environment of Simulated Deep Sea [J]. | RARE METAL MATERIALS AND ENGINEERING , 2016 , 45 (11) : 2918-2924 . |
MLA | Tong Hui et al. "Anti-corrosion Mechanism of Al-Ti-Si-RE Coating in the Pressure Environment of Simulated Deep Sea" . | RARE METAL MATERIALS AND ENGINEERING 45 . 11 (2016) : 2918-2924 . |
APA | Tong Hui , Wei Shicheng , Liu Yi , Wang Xinkun , Liu Wenchao , Xu Binshi . Anti-corrosion Mechanism of Al-Ti-Si-RE Coating in the Pressure Environment of Simulated Deep Sea . | RARE METAL MATERIALS AND ENGINEERING , 2016 , 45 (11) , 2918-2924 . |
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Abstract :
介绍了镁合金表面热喷涂技术的特点及国内外采用热喷涂技术为镁合金表面提供Al涂层防护的研究现状,指出了镁合金表面热喷涂技术获得Al涂层防护中存在的不足,从喷涂工艺和喷涂材料的角度分析了镁合金表面热喷涂Al涂层技术的发展趋势,并提出了今后镁合金表面热喷涂Al涂层防护工作需要解决的两个主要问题:降低热喷涂Al涂层的孔隙率和从材料本身提高Al涂层的耐磨防腐性能。
Keyword :
耐腐蚀性能 耐腐蚀性能 Al基涂层 Al基涂层 镁合金 镁合金 抗磨损性能 抗磨损性能 热喷涂技术 热喷涂技术
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GB/T 7714 | 张志彬 , 梁秀兵 , 陈永雄 et al. 镁合金表面热喷涂铝基涂层研究进展 [C] //第九届全国表面工程大会暨第四届全国青年表面工程论坛论文集 . 2015 . |
MLA | 张志彬 et al. "镁合金表面热喷涂铝基涂层研究进展" 第九届全国表面工程大会暨第四届全国青年表面工程论坛论文集 . (2015) . |
APA | 张志彬 , 梁秀兵 , 陈永雄 , 魏世丞 , 徐滨士 . 镁合金表面热喷涂铝基涂层研究进展 第九届全国表面工程大会暨第四届全国青年表面工程论坛论文集 . (2015) . |
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Abstract :
简要介绍了钢质潜水器表面保护研究的技术发展现状。根据已有的研究表明:提高基体材料的防腐特性、阴极防护、涂层防护是解决钢质潜水器腐蚀的三种有效方法。最后本文对三种方法的研究现状和发展前景做了简要的分析并提出了建议。
Keyword :
材料性能 材料性能 涂层防护 涂层防护 钢质潜水器 钢质潜水器 阴极保护 阴极保护
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GB/T 7714 | 童辉 , 魏世丞 , 陈永雄 et al. 关于钢质潜水器表面材料防护的技术研究及发展现状 [C] //第九届全国表面工程大会暨第四届全国青年表面工程论坛论文集 . 2015 . |
MLA | 童辉 et al. "关于钢质潜水器表面材料防护的技术研究及发展现状" 第九届全国表面工程大会暨第四届全国青年表面工程论坛论文集 . (2015) . |
APA | 童辉 , 魏世丞 , 陈永雄 , 刘毅 , 刘玉欣 , 田浩亮 et al. 关于钢质潜水器表面材料防护的技术研究及发展现状 第九届全国表面工程大会暨第四届全国青年表面工程论坛论文集 . (2015) . |
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Abstract :
The thermal shock resistance and electrochemical corrosion behaviors of Al-Ti-Si-RE coating before and after thermal shock were investigated. The results show that the Al-Ti-Si-RE coating could keep good thermal shock resistance at 500 degrees C, and the electrochemical corrosion resistance before and after thermal shock does not decline sharply, which is caused by more metallurgical combinations between the coating and the substrate due to the reaction heat of Ti and Al in the high speed electric arc spraying process. At the same time, by transmission electron microscopy (TEM) observation, the grain sizes of the coating are small, and Al and Ti-Al intermetallics have a good coherency, which could all reduce the coating cracking sensitivity. In addition, Al-Ti-Si-RE coating has a good cage construction, whose voids and coating cracks could be sealed by Al oxides, and it could play the role of self-sealing and self-healing, and make the coating thicker with good resistances of thermal shock and electrochemical corrosion.
Keyword :
Al-Ti-Si-RE coating Al-Ti-Si-RE coating bonding strength bonding strength electrochemical corrosion electrochemical corrosion high velocity arc spraying high velocity arc spraying thermal shock test thermal shock test
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GB/T 7714 | Tong Hui , Wei Shicheng , Liu Yi et al. Thermal Shock and Electrochemical Corrosion Behaviors of High Speed Arc Sprayed Al-Ti-Si-RE Coating [J]. | RARE METAL MATERIALS AND ENGINEERING , 2015 , 44 (4) : 1000-1005 . |
MLA | Tong Hui et al. "Thermal Shock and Electrochemical Corrosion Behaviors of High Speed Arc Sprayed Al-Ti-Si-RE Coating" . | RARE METAL MATERIALS AND ENGINEERING 44 . 4 (2015) : 1000-1005 . |
APA | Tong Hui , Wei Shicheng , Liu Yi , Tian Haoliang , Wang Xinkun , Xu Binshi . Thermal Shock and Electrochemical Corrosion Behaviors of High Speed Arc Sprayed Al-Ti-Si-RE Coating . | RARE METAL MATERIALS AND ENGINEERING , 2015 , 44 (4) , 1000-1005 . |
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Abstract :
The corrosion behavior of Ti-Al pseudo-alloy coating under high hydrostatic pressure were investigated using electrochemical measurement and microstructure analysis. The results show that the corrosion resistance of Ti-Al pseudo-alloy coating remains excellent at 6 MPa hydrostatic pressure. It is because rich Ti phase performs the cage construction as an inert electrode and rich Al phase offers cathode protection to steel as the sacrifices. At the same time, the cage construction of rich Ti phase is full of corrosion products of Al, so the coating resistance is improved due to the effect of high self-sealing.
Keyword :
deep sea corrosion deep sea corrosion electrochemical measurement electrochemical measurement high velocity arc sprayed high velocity arc sprayed Ti-Al pseudo-alloy coating Ti-Al pseudo-alloy coating
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GB/T 7714 | Tong Hui , Wei Shicheng , Liu Yi et al. Corrosion Behavior of Ti-Al Pseudo-Alloy Coating in the Pressure Environment of Simulated Deep Sea [J]. | RARE METAL MATERIALS AND ENGINEERING , 2014 , 43 (12) : 3068-3072 . |
MLA | Tong Hui et al. "Corrosion Behavior of Ti-Al Pseudo-Alloy Coating in the Pressure Environment of Simulated Deep Sea" . | RARE METAL MATERIALS AND ENGINEERING 43 . 12 (2014) : 3068-3072 . |
APA | Tong Hui , Wei Shicheng , Liu Yi , Tian Haoliang , Wang Xinkun , Xu Binshi . Corrosion Behavior of Ti-Al Pseudo-Alloy Coating in the Pressure Environment of Simulated Deep Sea . | RARE METAL MATERIALS AND ENGINEERING , 2014 , 43 (12) , 3068-3072 . |
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Abstract :
本发明属于机械加工技术领域,具体涉及一种机床的可重配置装置。可重配置铣车一体化装置,它安装于铣削主体(1)上,并与车削主体(9)相配合,其技术方案是,铣削主轴连接法兰(2)套接在铣削主轴(7)上,与铣削主体(1)通过螺钉连接;车刀架连接法兰(3)套接在铣削主轴连接法兰(2)外,并与铣削主体(1)通过螺钉连接;车刀架(4)通过其上的定位块(6)装配在车刀架连接法兰(3)的定位凹槽处,车刀(5)通过车刀锁紧螺钉(8)安装于车刀架(4)的车刀安装槽处。本发明实现可重配置铣车一体化多功能机床的铣削功能和车削功能的转换,为特殊环境下的装备维修和快速加工提供有力保障。
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GB/T 7714 | 金鑫 , 徐滨士 , 张之敬 et al. 可重配置铣车一体化装置 : CN201410040135.0[P]. | 2014-01-27 . |
MLA | 金鑫 et al. "可重配置铣车一体化装置" : CN201410040135.0. | 2014-01-27 . |
APA | 金鑫 , 徐滨士 , 张之敬 , 孙椰望 , 孙宏昌 . 可重配置铣车一体化装置 : CN201410040135.0. | 2014-01-27 . |
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Abstract :
本发明属于机械加工技术领域,具体涉及一种数控机床的控制系统。具有保障性冗余操作功能的数控机床控制系统,其技术方案是:它包括:强电源模块(1)、断路器组件接口(2)、冷却控制系统(3)、控制变压器(4)、控制系统开关电源(5)、液压系统开关电源(6)、液压控制系统(7)、数控系统(8)、保障性手动控制系统(9)、机床驱动系统继电器组件(10)、照明控制系统(11)、机床主轴驱动系统(12)、机床进给驱动系统(13)以及伺服变压器(14);本发明采用数控系统和保障性手动控制系统的并行控制方法,当数控机床在数控系统出现故障时,仍可采用保障性的手动控制系统进行操作控制,使得数控机床仍具备加工能力。
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GB/T 7714 | 张之敬 , 徐滨士 , 金鑫 et al. 具有保障性冗余操作功能的数控机床控制系统 : CN201410069007.9[P]. | 2014-02-27 . |
MLA | 张之敬 et al. "具有保障性冗余操作功能的数控机床控制系统" : CN201410069007.9. | 2014-02-27 . |
APA | 张之敬 , 徐滨士 , 金鑫 , 孙椰望 , 孙宏昌 . 具有保障性冗余操作功能的数控机床控制系统 : CN201410069007.9. | 2014-02-27 . |
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