Query：
学者姓名：周正
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
本发明公开了一种竹笋结构W‑Zr基非晶合金复合材料及其制备方法与应用，涉及金属复合材料技术领域，复合材料的整体结构上分别存在硬脆区和软韧区，其中硬脆区体积分数为10％～30％，软韧区体积分数为70％～90％，两区域呈锥形交替分布，其分布为仿生竹笋结构，这种竹笋结构的优势在于：在高应变速率条件下，软韧区先发生变形，随着变形程度增加，软韧区与硬脆区同时变形，随后硬脆区开裂，沿着设计结构方式分离脱落，重新露出尖锐区域完成自锐化，类似竹笋剥落；循环此步骤，完成侵彻过程，可显著增加穿甲弹威力。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 谈震 , 席钊 , 宁子阳 et al. 一种竹笋结构W-Zr基非晶合金复合材料及其制备方法与应用 : CN202310055654.3[P]. | 2023-01-17 . |
| MLA | 谈震 et al. "一种竹笋结构W-Zr基非晶合金复合材料及其制备方法与应用" : CN202310055654.3. | 2023-01-17 . |
| APA | 谈震 , 席钊 , 宁子阳 , 贺定勇 , 周正 , 郭星晔 et al. 一种竹笋结构W-Zr基非晶合金复合材料及其制备方法与应用 : CN202310055654.3. | 2023-01-17 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
本发明涉及一种具有低热导率和高热稳定性的高熵硅酸盐陶瓷及其制备方法与应用。高熵陶瓷材料的化学式为RE2Si2O7，其中RE可为Er，Sc，Lu，Yb或Tm中的任意四种稀土元素。制备方法为：以四种RE2O3粉体和纯SiO2粉体为原料，以丙酮或无水乙醇为混合介质，用高能球磨机混合，充分混合的粉末经过烘干、研磨、筛分后，选取筛分后的细粉，在1500～1600℃的温度范围煅烧合成高熵陶瓷材料，然后采用放电等离子烧结法制备致密的块材陶瓷。所制备的陶瓷块材的致密度可达98％以上，经测量该材料具有非常低的热导率，在室温到1000℃范围内热导率均小于1.1W/m.K，可以用作防隔热材料。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 贺定勇 , 欧克 , 郭星晔 et al. 一种具有低热导率和高热稳定性的高熵硅酸盐陶瓷及其制备方法与应用 : CN202210112836.5[P]. | 2022-01-29 . |
| MLA | 贺定勇 et al. "一种具有低热导率和高热稳定性的高熵硅酸盐陶瓷及其制备方法与应用" : CN202210112836.5. | 2022-01-29 . |
| APA | 贺定勇 , 欧克 , 郭星晔 , 崔丽 , 周正 , 谈震 et al. 一种具有低热导率和高热稳定性的高熵硅酸盐陶瓷及其制备方法与应用 : CN202210112836.5. | 2022-01-29 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
开发了三种不同结构的Ni-20Al丝材,对其火焰喷涂工艺性和涂层微结构特征等进行分析,并与商用Metco 405NS丝材及所制备的涂层进行了对比.结果表明,丝材结构影响了火焰加热时热量由丝材表面向芯部的传导,导致丝材熔化状态产生显著差异,进而决定了喷涂焰流的稳定性以及相关涂层组织的均匀性.其中,采用轧制拉拔包丝技术制备的Ni-20Al丝材,呈现出优异的喷涂工艺稳定性,所制备的涂层组织均匀,平均显微硬度和结合强度分别可达348.3 HV0.05、62 MPa,与405NS丝材制备涂层性能基本一致,具备了较好的应用潜力.
Keyword ：
微观组织结构 微观组织结构 Ni-20Al丝材 Ni-20Al丝材 火焰喷涂 火焰喷涂
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 路洋 , 闫泽 , 周正 et al. Ni-20Al丝材制备及涂层微结构特征研究 [J]. | 热喷涂技术 , 2022 , 14 (3) : 64-73 . |
| MLA | 路洋 et al. "Ni-20Al丝材制备及涂层微结构特征研究" . | 热喷涂技术 14 . 3 (2022) : 64-73 . |
| APA | 路洋 , 闫泽 , 周正 , 王彦军 , 苗小锋 , 冀晓鹃 et al. Ni-20Al丝材制备及涂层微结构特征研究 . | 热喷涂技术 , 2022 , 14 (3) , 64-73 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The Mo-10Si-(0, 5, 10, 15)B (at.%) alloys located in Moss (Mo solid solution) +Mo3Si +T2 (Mo5SiB2) region were prepared by arc melting. The effect of B content on the microstructure, microhardness, fracture toughness and oxidation resistance of the alloys was studied. In the Mo-10Si alloy, there are primary Mo-ss and peritectic Mo3Si phases. With the addition of B, (Mo-ss + T2) binary and (Mo-ss + T2 + Mo3Si) ternary eutectics emerge in Mo-10Si-(5, 10)B alloys. For Mo-10Si-15B alloy, primary Moss disappears and the mi-crostructure is only composed of binary and ternary eutectics. With the increase of B content, the proportion and grain size of Mo-ss decrease. The microhardness of alloys increases with the increase of B content due to the increasing intermetallics. The fracture toughness of alloys decreases obviously in single-edge notched three-point bending testing (SENB) and the fracture mode transforms from transgranular fracture to intergranular fracture because of the refinement of Mo-ss. In the high-temperature oxidation test at 1250 degrees C, the oxidation weight loss of the alloys decreases with the addition of B due to the densification of the borosilicate layer. (C) 2021 Elsevier B.V. All rights reserved.
Keyword ：
Microstructure Microstructure Oxidation resistance Oxidation resistance B content B content Mo-Si-B alloys Mo-Si-B alloys Fracture toughness Fracture toughness
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Jin, Ming , He, Dingyong , Shao, Wei et al. Influence of B contents on the microstructure, fracture toughness and oxidation resistance of Mo-Si-B alloys [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2022 , 890 . |
| MLA | Jin, Ming et al. "Influence of B contents on the microstructure, fracture toughness and oxidation resistance of Mo-Si-B alloys" . | JOURNAL OF ALLOYS AND COMPOUNDS 890 (2022) . |
| APA | Jin, Ming , He, Dingyong , Shao, Wei , Tan, Zhen , Guo, Xingye , Zhou, Zheng et al. Influence of B contents on the microstructure, fracture toughness and oxidation resistance of Mo-Si-B alloys . | JOURNAL OF ALLOYS AND COMPOUNDS , 2022 , 890 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
本发明提供一种球形Mo‑Si‑B粉末及其制备方法和应用。所述制备方法包括以下步骤：制备Mo‑Si‑B合金铸锭；将所述Mo‑Si‑B合金铸锭经过机械破碎，以制造在预先确定为适合用作等离子球化过程中的原料的粒径范围内的前驱体粉末；对在所述确定的粒径范围内的所述前驱体粉末进行所述等离子球化，使所述前驱体粉末吸热熔融球化并骤冷固化以形成球形Mo‑Si‑B粉末。该方法制备的球形粉末粒径分布均匀、球形度高、流动性好, 可满足各种表面工程和粉末冶金的要求，同时杂质含量低，含氧量＜0.09％，有利于提高Mo‑Si‑B涂层的整体性能。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 邵蔚 , 靳鸣 , 贺定勇 et al. 一种用于铌基合金表面的高温抗氧化涂层 : CN202110969270.3[P]. | 2021-08-23 . |
| MLA | 邵蔚 et al. "一种用于铌基合金表面的高温抗氧化涂层" : CN202110969270.3. | 2021-08-23 . |
| APA | 邵蔚 , 靳鸣 , 贺定勇 , 吴旭 , 谈震 , 周正 et al. 一种用于铌基合金表面的高温抗氧化涂层 : CN202110969270.3. | 2021-08-23 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
本发明公开了一种利用激光增材制备点阵结构非晶‑纳米晶合金的方法，属于金属激光增材制造技术领域，所述方法包括：制备符合激光增材制造需求且具有较高非晶形成能力的锆基/钛基非晶合金粉末，利用激光增材制造技术获得能够成形非晶/纳米晶合金的临界尺寸及其相匹配的工艺参数，结合临界尺寸及点阵结构的静力载荷应力分布情况，完成强塑性匹配的点阵结构设计，在此基础上，利用激光增材制造技术制备点阵结构非晶/纳米晶合金。本发明所制备的点阵结构非晶/纳米晶合金具有高的比强度和塑性变形能力。
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 谈震 , 李锦涛 , 贺定勇 et al. 一种利用激光增材制备点阵结构非晶-纳米晶合金的方法 : CN202110018514.X[P]. | 2021-01-07 . |
| MLA | 谈震 et al. "一种利用激光增材制备点阵结构非晶-纳米晶合金的方法" : CN202110018514.X. | 2021-01-07 . |
| APA | 谈震 , 李锦涛 , 贺定勇 , 周正 , 郭星晔 , 崔丽 et al. 一种利用激光增材制备点阵结构非晶-纳米晶合金的方法 : CN202110018514.X. | 2021-01-07 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
为满足马氏体不锈钢熔覆层的高效制备需求,在合金成分优化基础上,采用激光熔覆技术制备了单层厚度超过2 mm的FeCrNiMo合金熔覆层,并对其微观组织结构与摩擦磨损行为进行了研究。结果表明,熔覆层厚度均匀,无明显裂纹等缺陷,组织从表面沿厚度方向依次为等轴晶、树枝晶、胞状晶,枝晶内为马氏体,晶间为富Cr、Mo元素的铁素体。在环-块摩擦磨损形式下,随着施加载荷加大,摩擦系数和磨损量逐渐增加;熔覆层以磨粒磨损和氧化磨损机制为主,但在高载荷下黏着磨损倾向增大。在球盘往复摩擦磨损形式下,随温度升高,摩擦系数下降,熔覆层发生热软化,磨损量增加;熔覆层以氧化磨损和疲劳磨损机制为主。
Keyword ：
激光熔覆 激光熔覆 微观组织 微观组织 FeCrNiMo不锈钢 FeCrNiMo不锈钢 摩擦磨损 摩擦磨损
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 赵万新 , 周正 , 黄杰 et al. FeCrNiMo激光熔覆层组织与摩擦磨损行为 [J]. | 金属学报 , 2021 , 57 (10) : 1291-1298 . |
| MLA | 赵万新 et al. "FeCrNiMo激光熔覆层组织与摩擦磨损行为" . | 金属学报 57 . 10 (2021) : 1291-1298 . |
| APA | 赵万新 , 周正 , 黄杰 , 杨延格 , 杜开平 , 贺定勇 . FeCrNiMo激光熔覆层组织与摩擦磨损行为 . | 金属学报 , 2021 , 57 (10) , 1291-1298 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
激光选区熔化技术在航空航天领域的发展现状及典型应用
Keyword ：
材料体系 材料体系 激光选区熔化 激光选区熔化 发展现状 发展现状 轻量化设计 轻量化设计 一体化复杂结构 一体化复杂结构
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 杨胶溪 , 吴文亮 , 王长亮 et al. 激光选区熔化技术在航空航天领域的发展现状及典型应用 [J]. | 杨胶溪 , 2021 , 41 (2) : 1-15 . |
| MLA | 杨胶溪 et al. "激光选区熔化技术在航空航天领域的发展现状及典型应用" . | 杨胶溪 41 . 2 (2021) : 1-15 . |
| APA | 杨胶溪 , 吴文亮 , 王长亮 , 刘晨光 , 王树志 , 阳代军 et al. 激光选区熔化技术在航空航天领域的发展现状及典型应用 . | 杨胶溪 , 2021 , 41 (2) , 1-15 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
In this research, FeCrMoMn coatings with excellent corrosion resistance and metallurgical quality were deposited on the 45# steel substrate by conventional and high-speed laser cladding at the scanning speed of 0.4 m/min, 40 m/min and 70 m/min, respectively. Their microstructure, phase composition, hardness and corrosion resistance were characterized and compared. The results show that compared with the conventional cladding, high-speed laser cladding leads to a decrease in grain size, heat affected zone, and the dilution rate of the coatings due to solute trapping of coatings. Metallurgical bonding is formed between the substrate and the coatings, and the hardness and electrochemical corrosion resistance of the coatings are also significantly improved.
Keyword ：
Corrosion resistance Corrosion resistance Solute trapping Solute trapping FeCrMoMn coatings FeCrMoMn coatings Microstructure Microstructure High-speed laser cladding High-speed laser cladding
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Yang, Jiaoxi , Bai, Bing , Ke, Hua et al. Effect of metallurgical behavior on microstructure and properties of FeCrMoMn coatings prepared by high-speed laser cladding [J]. | OPTICS AND LASER TECHNOLOGY , 2021 , 144 . |
| MLA | Yang, Jiaoxi et al. "Effect of metallurgical behavior on microstructure and properties of FeCrMoMn coatings prepared by high-speed laser cladding" . | OPTICS AND LASER TECHNOLOGY 144 (2021) . |
| APA | Yang, Jiaoxi , Bai, Bing , Ke, Hua , Cui, Zhe , Liu, Zhe , Zhou, Zheng et al. Effect of metallurgical behavior on microstructure and properties of FeCrMoMn coatings prepared by high-speed laser cladding . | OPTICS AND LASER TECHNOLOGY , 2021 , 144 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Atmospheric plasma spraying (APS) is widely used in the fabrication of hydroxyapatite (HA) coating due to the advantages of low-cost, simple operation and it can be used to fabricate coatings with controllable structure. Despite all these advantages, the application of APS deposited HA coating for long-term use is limited by its low crystallinity, low phase purity and poor antibacterial property efficiency. Herein, HA coatings with high crystallinity, phase purity and c-axis crystalline orientation were fabricated by APS. In vitro cell, culture testing suggested that the c-axis oriented HA coating was more effective to promote the proliferation of osteoblasts cells compared with other coatings. The antibacterial activity of HA coating against the bacteria indicated that the c-axis oriented HA coating restrained the bacterial adhesion, and the antibacterial effect of the E. coli bacteria was more pronounced than that of the S. epidermidis bacteria. This study suggests that the HA coatings with the specific c-axis crystalline orientation are available for their potential applications for orthopedic and dental implantation. © 2021 Elsevier B.V.
Keyword ：
Plasma spraying Plasma spraying Bioactivity Bioactivity Hydroxyapatite Hydroxyapatite Crystallinity Crystallinity Escherichia coli Escherichia coli Plasma jets Plasma jets Crystalline materials Crystalline materials Coatings Coatings
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Xiaomei , He, Dingyong , Zhou, Zheng et al. In vitro bioactivity and antibacterial performances of atmospheric plasma sprayed c-axis preferential oriented hydroxyapatite coatings [J]. | Surface and Coatings Technology , 2021 , 417 . |
| MLA | Liu, Xiaomei et al. "In vitro bioactivity and antibacterial performances of atmospheric plasma sprayed c-axis preferential oriented hydroxyapatite coatings" . | Surface and Coatings Technology 417 (2021) . |
| APA | Liu, Xiaomei , He, Dingyong , Zhou, Zheng , Guo, Xingye , Liu, Yi , Hou, Wenjia et al. In vitro bioactivity and antibacterial performances of atmospheric plasma sprayed c-axis preferential oriented hydroxyapatite coatings . | Surface and Coatings Technology , 2021 , 417 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
