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学者姓名：黄利光
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Abstract ：
通过测量阳极极化曲线研究了固溶处理温度对超级双相不锈铸钢在人工海水中腐蚀的影响.结果表明:经不同温度固溶处理的超级双相不锈铸钢材料在人工海水中自腐蚀电位相差不大,均具有钝化性能,维钝电流密度为0.1 mA/cm2 左右;室温海水中,不同温度的固溶处理对腐蚀电流密度影响也不大;海水温度由室温升至80℃,钝化区宽度急剧变窄,击破电位显著下降.经1150℃固溶处理后,Cr、Mo在铁素体与奥氏体两相中的均匀分配,有利于提高超级双相不锈铸钢在海水中耐蚀性.
Keyword ：
人工海水 人工海水 固溶处理温度 固溶处理温度 腐蚀 腐蚀 超级双相不锈铸钢 超级双相不锈铸钢
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| GB/T 7714 | 向红亮 , 刘东 , 何福善 et al. 固溶温度对超级双相不锈铸钢在海水中耐蚀性的影响 [J]. | 腐蚀科学与防护技术 , 2011 , 23 (1) : 25-28 . |
| MLA | 向红亮 et al. "固溶温度对超级双相不锈铸钢在海水中耐蚀性的影响" . | 腐蚀科学与防护技术 23 . 1 (2011) : 25-28 . |
| APA | 向红亮 , 刘东 , 何福善 , 黄利光 . 固溶温度对超级双相不锈铸钢在海水中耐蚀性的影响 . | 腐蚀科学与防护技术 , 2011 , 23 (1) , 25-28 . |
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采用熔体温度处理(包括熔体混合及过热处理)工艺研究Al-20％Si(质量分数)合金凝固组织,并结合化学变质法进一步细化初生硅相.结果表明,当熔体经混合后过热至900℃时,初生硅的尺寸约为34 μm;添加变质剂后再进行熔体混合可以使Al-20％Si中的初生硅相进一步细化,特别是在Al-10％Si和Al-30％Si 中分别 添加0.2％Al-5Ti-C-3Ce和0.4％Cu-10％P后,再进行熔体过热处理,合金中的初生硅呈小块状弥散分布,且尺寸在10μm以下,材料基体呈现出典型的复合材料特征.熔体温度处理与添加化学变质剂方法对初生硅相有显著的多重变质细化作用；在熔体混合时α(Al)的重新熔化和熔体化学键的重组,增大了合金液在凝固时的过冷度,使初生硅相得到细化；对混合熔体再进行过热处理时,混合熔体中的Si相发生熔断、增殖,从而使合金中初生硅相得到进一步细化.添加细化剂或变质剂会明显增强熔体温度处理对Al-Si合金中初生硅的细化效果.
Keyword ：
变质 变质 熔体混合 熔体混合 熔体温度处理 熔体温度处理 熔体过热 熔体过热 细化 细化 高硅铝合金 高硅铝合金
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| GB/T 7714 | 王连登 , 朱定一 , 陈永禄 et al. 熔体温度处理及变质对Al-20％Si合金凝固组织的影响 [J]. | 中国有色金属学报 , 2011 , 21 (9) : 2075-2083 . |
| MLA | 王连登 et al. "熔体温度处理及变质对Al-20％Si合金凝固组织的影响" . | 中国有色金属学报 21 . 9 (2011) : 2075-2083 . |
| APA | 王连登 , 朱定一 , 陈永禄 , 魏喆良 , 李秋菊 , 黄利光 et al. 熔体温度处理及变质对Al-20％Si合金凝固组织的影响 . | 中国有色金属学报 , 2011 , 21 (9) , 2075-2083 . |
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The microstructures of Al-20%Si (mass fraction) alloy prepared by melt thermal treatment (including the melt mixing and melt superheating) were studied combining with chemical metamorphism to further refine the primary silicon. The results show that, when the mixed melt is superheated to 900°C, the grain size of primary silicon is decreased to about 34 μm. And adding the modificator or refiner into the melt before melt mixing can further refine the primary silicon of Al-20%Si. Especially, when the Al-10%Si melt mixes with the Al-30%Si melt added 0.2%Al-5Ti-C-3Ce and 0.4%Cu-10P, respectively, then superheated the mixed melt, the primary silicon of Al-20%Si is well uniformly distributed in tiny blocklike with the grain size less than 10 μm, which makes the matrix of the alloy exhibit typical composite characteristic. The analysis shows that the melt thermal treatment and adding modificator or refiner at the same time have multiple modification effects on the primary silicon. The melt thermal treatment increases the supercooling degree during the solidification process of the alloys to refine or modify the primary silicon because of the re-melt of primary α(Al) and the recombination of chemical bond in Al-Si alloy as mixing the different melt together. And then superheating the mixing melt can make the pre-crystallized primary silicon split and proliferate, thus further refine or modify the primary silicon. And adding refiner or modificator can improve the refinement effect of the melt thermal treatment on the primary silicon of the Al-Si alloys.
Keyword ：
Aluminum alloys Aluminum alloys Grain size and shape Grain size and shape Heat treatment Heat treatment Microstructure Microstructure Mixing Mixing Refining Refining Silicon alloys Silicon alloys Solidification Solidification
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| GB/T 7714 | Wang, Lian-Deng , Zhu, Ding-Yi , Chen, Yong-Lu et al. Effects of melt thermal treatment and modification on solidification microstructure of Al-20%Si alloy [J]. | Chinese Journal of Nonferrous Metals , 2011 , 21 (9) : 2075-2083 . |
| MLA | Wang, Lian-Deng et al. "Effects of melt thermal treatment and modification on solidification microstructure of Al-20%Si alloy" . | Chinese Journal of Nonferrous Metals 21 . 9 (2011) : 2075-2083 . |
| APA | Wang, Lian-Deng , Zhu, Ding-Yi , Chen, Yong-Lu , Wei, Zhe-Liang , Li, Qiu-Ju , Huang, Li-Guang et al. Effects of melt thermal treatment and modification on solidification microstructure of Al-20%Si alloy . | Chinese Journal of Nonferrous Metals , 2011 , 21 (9) , 2075-2083 . |
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The Al-20%Si alloy was prepared by mixing the high temperature melt of hypereutectic Al-30%Si alloy with the pre-crystallized low temperature hypoeutectic Al-10%Si alloy melt and then superheating the mixture, i.e., melts mixing and superheating (for short: MMS), combining with chemical metamorphism. The effect of pre-crystallized characteristic of the mixed melt on microstructure of Al-20%Si alloy was then investigated, The primary Si granules of the sample, poured by melt mixing with different composition and temperature, were well distributed with a grain size of less than 36 mu m. And after superheating, the primary Si phase of the mixed melt could be further refined and distributed more uniformly, which if adding the modificator into the mixed melt, the size of primary Si were been deceased and refined by less than 20 mu m. The analysis result shows that the decrease in the temperature of the mixed melt, from the average temperature of 740 degrees C for the mixture of Al-30%Si (900 degrees C) and Al-10%Si (580 degrees C) to 670 degrees C for present alloy, leads to the increase in the degree of undercooling, and consequently to the refinement of primary Si. During the superheating, the growth, local melting, as well as the proliferation of primary Si occurred because of the unhomogeneous micro-distribution of the temperature and composition within the mixing melt, resulting in the further decrease in the grain size of primary Si. And adding the modificator could promote the effect of modification of primary Si of MMS process on the hypereutectic Al-Si alloy.
Keyword ：
hypereutectic Al-Si alloy hypereutectic Al-Si alloy melt-mixing melt-mixing melt-superheating melt-superheating modification modification pre-crystallized characteristic pre-crystallized characteristic refinement refinement
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| GB/T 7714 | Wang Liandeng , Zhu Dingyi , Wei Zheliang et al. Effect of the mixing-melt and superheating on the primary Si phase of hypereutectic Al-20%Si alloy [C] . 2011 : 79-, . |
| MLA | Wang Liandeng et al. "Effect of the mixing-melt and superheating on the primary Si phase of hypereutectic Al-20%Si alloy" . (2011) : 79-, . |
| APA | Wang Liandeng , Zhu Dingyi , Wei Zheliang , Chen Yonglu , Huang Liguang , Li Qiuju et al. Effect of the mixing-melt and superheating on the primary Si phase of hypereutectic Al-20%Si alloy . (2011) : 79-, . |
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The effect of Ce2O3 on the fabrication of the Al-Ti-C-RE refiner prepared by adding a powder mixture of potassium titanium fluoride and carbon into the aluminum melt was studied by means of the OM, XRD, ESEM and EDAX etc. It found that the addition of Ce2O3 increases the reaction rate between the potassium titanium fluoride and carbon during the fabrication of the Al-Ti-C-RE refiner making the Al3Ti and TiC phases well distributed. Moreover, the Ce2O3 is an intensive kind of the surface activation element strongly sticking to the Al3Ti phase after reacting on the master alloy observed by ESEM, which formed a new rare earth compound phase [AlTiCe] and accelerated the synthesis rate of TiC particles. And adding 0.15wt% Al-Ti-C-RE alloy can refine the pure Al strongly and remarkably, in which the grain size of pure Al is lower than 94.2 mu m. When the holding time of refining exceeded the 120 minutes, the refining effect on the pure Al has not faded remarkably, which proves the Al-Ti-C-RE prepared by the Ce2O3 have long-life and stable refining effects.
Keyword ：
Al-Ti-C-RE Refiner Al-Ti-C-RE Refiner Ce2O3 Ce2O3 Refinement Refinement TiC TiC Villiaumite Villiaumite
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| GB/T 7714 | Wang, Liandeng , Zhu, Dingyi , Wei, Zheliang et al. The Refinement Effect of Al-Ti-C-RE Master Alloy Prepared by Adding Ce2O3 on Pure Al [C] . 2011 : 227-, . |
| MLA | Wang, Liandeng et al. "The Refinement Effect of Al-Ti-C-RE Master Alloy Prepared by Adding Ce2O3 on Pure Al" . (2011) : 227-, . |
| APA | Wang, Liandeng , Zhu, Dingyi , Wei, Zheliang , Huang, Liguang , Song, Wei , Chen, Yonglu . The Refinement Effect of Al-Ti-C-RE Master Alloy Prepared by Adding Ce2O3 on Pure Al . (2011) : 227-, . |
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The effect of solid solution treatment on corrosion behavior of super duplex stainless cast steel in artificial seawater was studied by means of anodic polarization curve measurement. The results indicated that the free corrosion potential of solid solution treated cast duplex stainless steel materials is indistinctly different in artificial seawater, the passive performance and the passive current densities are almost the same; The temperature of artificial seawater have great effects on corrosion property, and passivation region becomes narrow and pitting potential decrease while the test temperature increasing from room temperature to 80 °C. After treated at 1150 °C, the average distribution of Cr, Mo in the ferrite and austenite phases is beneficial to the enhancement of corrosion property of super duplex stainless cast steel in artificial seawater.
Keyword ：
Artifical seawater; Corrosion; Solid solution temperature; Super duplex stainless cast steel Artifical seawater; Corrosion; Solid solution temperature; Super duplex stainless cast steel
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| GB/T 7714 | Xiang, H.-L. , Liu, D. , He, F.-S. et al. Effect of solid solution treatment temperatures on corrosion resistance of super duplex stainless cast steel in seawater [J]. | Corrosion Science and Protection Technology , 2011 , 23 (1) : 25-28 . |
| MLA | Xiang, H.-L. et al. "Effect of solid solution treatment temperatures on corrosion resistance of super duplex stainless cast steel in seawater" . | Corrosion Science and Protection Technology 23 . 1 (2011) : 25-28 . |
| APA | Xiang, H.-L. , Liu, D. , He, F.-S. , Huang, L.-G. . Effect of solid solution treatment temperatures on corrosion resistance of super duplex stainless cast steel in seawater . | Corrosion Science and Protection Technology , 2011 , 23 (1) , 25-28 . |
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通过OM,SEM以及拉伸实验与电化学测试等手段,研究了高温时效析出金属间相对铸造2507超级双相不锈钢力学及耐蚀性能的影响.实验结果表明:材料固溶后经650—950℃时效处理,析出弥散颗粒χ相有提高抗拉强度的作用,σ相却使抗拉强度急剧下降;二者均使塑性急剧恶化,拉伸断口均表现为脆性断裂.在人工海水中,σ相对材料的耐蚀性影响要比χ相弱,其数量越多,材料耐蚀性越差.
Keyword ：
力学性能 力学性能 耐蚀性 耐蚀性 金属间相 金属间相 铸造2507超级双相不锈钢 铸造2507超级双相不锈钢
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| GB/T 7714 | 向红亮 , 刘东 , 阮方如 et al. 时效析出相对铸造2507超级双相不锈钢力学及耐蚀性能的影响 [J]. | 金属学报 , 2010 , 46 (08) : 941-945 . |
| MLA | 向红亮 et al. "时效析出相对铸造2507超级双相不锈钢力学及耐蚀性能的影响" . | 金属学报 46 . 08 (2010) : 941-945 . |
| APA | 向红亮 , 刘东 , 阮方如 , 何福善 , 黄利光 . 时效析出相对铸造2507超级双相不锈钢力学及耐蚀性能的影响 . | 金属学报 , 2010 , 46 (08) , 941-945 . |
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采用电磁搅拌和熔体混合技术制备Al-20Si合金,研究表明,单纯采用电磁搅拌技术制备Al-20Si时,会产生偏析层,其初生Si相平均尺寸在60μm以上;而采用熔体混合+电磁搅拌复合处理可使Al-20Si合金中的初生Si相尺寸降至16μm以下,并消除在单纯电磁搅拌合金边缘出现的粗大的初生Si相的偏析层。熔体混合处理处理还可以强化过共晶Al-20Si合金的电磁搅拌效果,获得良好细化效果。
Keyword ：
Al-20Si合金 Al-20Si合金 初生Si 初生Si 熔体混合 熔体混合 电磁搅拌 电磁搅拌 细化 细化
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| GB/T 7714 | 王连登 , 朱定一 , 王尤生 et al. 熔体混合与电磁搅拌对Al-20Si合金中初生Si相的细化效果 [J]. | 特种铸造及有色合金 , 2010 , 30 (11) : 991-994,974 . |
| MLA | 王连登 et al. "熔体混合与电磁搅拌对Al-20Si合金中初生Si相的细化效果" . | 特种铸造及有色合金 30 . 11 (2010) : 991-994,974 . |
| APA | 王连登 , 朱定一 , 王尤生 , 宋伟 , 陈永禄 , 魏喆良 et al. 熔体混合与电磁搅拌对Al-20Si合金中初生Si相的细化效果 . | 特种铸造及有色合金 , 2010 , 30 (11) , 991-994,974 . |
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研究了成分互补熔体温度处理工艺对Al-20Si合金组织的影响规律。研究表明,该工艺能够对高硅铝合金的初生Si相产生明显的变质效果,经成分互补熔体温度处理工艺处理后,初生Si的晶粒在100min内尺寸可稳定在36μm左右,这表明对高硅铝合金的变质效果具有长效性,是一种简单实用的高硅铝合金变质处理工艺。
Keyword ：
成分互补 成分互补 熔体温度处理 熔体温度处理 高硅铝合金 高硅铝合金
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| GB/T 7714 | 王连登 , 王尤生 , 朱定一 et al. 成分互补熔体温度处理对高硅铝合金组织的影响 [J]. | 特种铸造及有色合金 , 2010 , 30 (02) : 114-116,92 . |
| MLA | 王连登 et al. "成分互补熔体温度处理对高硅铝合金组织的影响" . | 特种铸造及有色合金 30 . 02 (2010) : 114-116,92 . |
| APA | 王连登 , 王尤生 , 朱定一 , 易炜发 , 黄利光 . 成分互补熔体温度处理对高硅铝合金组织的影响 . | 特种铸造及有色合金 , 2010 , 30 (02) , 114-116,92 . |
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内尺寸 内尺寸 初生硅 初生硅 变质效果 变质效果 处理工艺 处理工艺 工艺处理 工艺处理 晶粒 晶粒 熔体温度处理 熔体温度处理 相组织 相组织 规律 规律 高硅铝合金 高硅铝合金
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| GB/T 7714 | 王连登 , 王尤生 , 朱定一 et al. 熔体温度处理对高硅铝合金的初生硅相组织的影响 [C] //第11届21省(自治区)、4市暨山西省第22届铸造会议论文集 . 2010 : 343-348 . |
| MLA | 王连登 et al. "熔体温度处理对高硅铝合金的初生硅相组织的影响" 第11届21省(自治区)、4市暨山西省第22届铸造会议论文集 . (2010) : 343-348 . |
| APA | 王连登 , 王尤生 , 朱定一 , 易炜发 , 黄利光 . 熔体温度处理对高硅铝合金的初生硅相组织的影响 第11届21省(自治区)、4市暨山西省第22届铸造会议论文集 . (2010) : 343-348 . |
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