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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 :
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 :
high velocity arc spraying high velocity arc spraying micro-analysis micro-analysis electrochemical measurements electrochemical measurements deep sea corrosion deep sea corrosion coating coating
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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 :
通过电化学测试技术与微观分析等手段研究了高速电弧喷涂Al-Ti-Si-RE涂层在模拟深海压力下的耐蚀机理。结果表明:Al-Ti-Si-RE涂层在静水压力条件下具有良好的耐蚀性能。电化学分析表明,在3 MPa浸泡480 h后动电位极化曲线阳极区上出现了1个类似钝化区间的"平台",主要是由于腐蚀产物阻塞腐蚀通道的原因;电化学阻抗谱(EIS)分析则表明,在高压下涂层Al钝化膜在浸泡6 h左右后已溶解,12 h后逐步趋于稳定,300~480 h区间几乎无变化;电化学噪声(EN)测试对比了涂层在常压和高压条件下0~64 ks的腐蚀情况,定量描述了涂层"钝化膜溶解-腐蚀产物快速形成-进入稳定阶段"的腐蚀过...
Keyword :
深海腐蚀 深海腐蚀 涂层 涂层 电化学测试 电化学测试 微观分析 微观分析 高速电弧喷涂 高速电弧喷涂
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GB/T 7714 | 童辉 , 魏世丞 , 刘毅 et al. Al-Ti-Si-RE涂层在模拟深海压力下的耐蚀机理 [J]. | 稀有金属材料与工程 , 2016 , 45 (11) : 2918-2924 . |
MLA | 童辉 et al. "Al-Ti-Si-RE涂层在模拟深海压力下的耐蚀机理" . | 稀有金属材料与工程 45 . 11 (2016) : 2918-2924 . |
APA | 童辉 , 魏世丞 , 刘毅 , 王新坤 , 刘文超 , 徐滨士 . Al-Ti-Si-RE涂层在模拟深海压力下的耐蚀机理 . | 稀有金属材料与工程 , 2016 , 45 (11) , 2918-2924 . |
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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 thermal shock test thermal shock test electrochemical corrosion electrochemical corrosion bonding strength bonding strength high velocity arc spraying high velocity arc spraying
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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 :
通过对Al-Ti-Si-RE涂层抗热震性能以及热震前后电化学腐蚀行为分析研究,发现Al-Ti-Si-RE涂层在500℃时能够保持良好的抗热震性能,且在热震前后耐电化学腐蚀性能没有明显下降,主要原因是Ti在高速电弧喷涂过程中,与Al结合反应放热,使涂层与基体"冶金结合"部位增多,提高了涂层结合强度。同时经透射电镜(TEM)观察,喷涂层中晶粒尺寸较小,且Al与钛铝金属间化合物具有良好共格关系,降低了Al-Ti-Si-RE涂层开裂敏感度。另外Al-Ti-Si-RE涂层具有发达的"骨架"结构,电化学腐蚀过程中形成的Al氧化物能够有效填充到"骨架"孔隙和热震引起的微裂纹当中,对涂层同时起到"自封闭"与"...
Keyword :
结合强度 结合强度 热震试验 热震试验 高速电弧喷涂 高速电弧喷涂 电化学腐蚀 电化学腐蚀 Al-Ti-Si-RE涂层 Al-Ti-Si-RE涂层
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GB/T 7714 | 童辉 , 魏世丞 , 刘毅 et al. Al-Ti-Si-RE高速电弧喷涂层热震与电化学腐蚀行为 [J]. | 稀有金属材料与工程 , 2015 , 44 (04) : 1000-1005 . |
MLA | 童辉 et al. "Al-Ti-Si-RE高速电弧喷涂层热震与电化学腐蚀行为" . | 稀有金属材料与工程 44 . 04 (2015) : 1000-1005 . |
APA | 童辉 , 魏世丞 , 刘毅 , 田浩亮 , 王新坤 , 徐滨士 . Al-Ti-Si-RE高速电弧喷涂层热震与电化学腐蚀行为 . | 稀有金属材料与工程 , 2015 , 44 (04) , 1000-1005 . |
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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 :
涂层防护 涂层防护 阴极保护 阴极保护 材料性能 材料性能 钢质潜水器 钢质潜水器
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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 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 high velocity arc sprayed high velocity arc sprayed electrochemical measurement electrochemical measurement 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 :
通过电化学测试和微观组织分析等方法,研究了钛铝双丝高速电弧喷涂伪合金涂层在模拟深海压力条件下的腐蚀行为。结果表明:钛铝伪合金涂层在6 MPa高压静水条件下仍保持了较好的耐蚀性能,主要是由于涂层中富Ti相基本未被腐蚀,在涂层结构中起到了支撑骨架的作用,富Al相则起到了牺牲阳极保护的作用。同时腐蚀产物有效地填充了富Ti相的"骨架"结构,使之形成具有高度"自封闭"效果的涂层,强化了涂层的耐蚀效果。
Keyword :
钛铝伪合金涂层 钛铝伪合金涂层 深海腐蚀 深海腐蚀 高速电弧喷涂 高速电弧喷涂 电化学测试 电化学测试
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GB/T 7714 | 童辉 , 魏世丞 , 刘毅 et al. 钛铝伪合金涂层在模拟深海压力下的腐蚀行为 [J]. | 稀有金属材料与工程 , 2014 , 43 (12) : 3068-3072 . |
MLA | 童辉 et al. "钛铝伪合金涂层在模拟深海压力下的腐蚀行为" . | 稀有金属材料与工程 43 . 12 (2014) : 3068-3072 . |
APA | 童辉 , 魏世丞 , 刘毅 , 田浩亮 , 王新坤 , 徐滨士 . 钛铝伪合金涂层在模拟深海压力下的腐蚀行为 . | 稀有金属材料与工程 , 2014 , 43 (12) , 3068-3072 . |
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