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大美非遗——冯骥才非遗美学思想访谈

民间文化论坛 2024年第5期 129-135页

作者：冯骥才刘明明天津大学冯骥才文学艺术研究院天津大学海南大学

自联合国教科文组织2003年颁布《保护非物质文化遗产公约》,民间文化正式以“非物质文化遗产”(以下简称“非遗”)的名称进入人类文化保护的视野。20多年来,中国非遗保护从普查入手摸清家底到形成四级保护名录,构建了多样化保护模式,进... 详细信息

自联合国教科文组织2003年颁布《保护非物质文化遗产公约》,民间文化正式以“非物质文化遗产”(以下简称“非遗”)的名称进入人类文化保护的视野。20多年来,中国非遗保护从普查入手摸清家底到形成四级保护名录,构建了多样化保护模式,进入科学保护阶段。随着非遗学科的建立,非遗从“保护实践”逐步向文化遗产的“学科建设”转向。然而非遗保护过程中仍存在大量传统文化衰微乃至消失的问题,民众对非遗的审美价值认识不足是重要的原因之一。民间文化这种粗朴稚拙的草根艺术究竟美不美?作为活态的非遗审美文化有何特殊的美学价值?文章通过对中国非遗研究专家、“民间文化保护第一人”冯骥才关于非遗之美的体验、品藻和鉴赏的访谈,为我们看待非遗提供了崭新的视角。

关键词：非遗美学民间审美地域性历史美

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“非遗的本质”两篇

民间文化论坛 2024年第5期 124-128页

作者：冯骥才天津大学冯骥才文学艺术研究院

非遗的地域代表性非遗有六个特点:非物质性、民间性、集体性、传承性、活态性和地域代表性。非遗的地域代表性是我们最容易看到却又最易忽视的重要文化特征。在这里,地域性和地域代表性不完全是同一概念。地域代表性也是地域性,但地域... 详细信息

非遗的地域代表性非遗有六个特点:非物质性、民间性、集体性、传承性、活态性和地域代表性。非遗的地域代表性是我们最容易看到却又最易忽视的重要文化特征。在这里,地域性和地域代表性不完全是同一概念。地域代表性也是地域性,但地域性并不一定是地域代表性。

关键词：非物质性同一概念民间性活态性地域性集体性非遗传承性

Effect of Reaction Layers on the Residual Stress of the Brazed TiC Cermets/Steel Joints

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Journal of Materials Science & Technology 2009年第2期25卷 203-207页

作者： Lixia Zhang jicai feng National Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 China

For the first time, considering the effect of reaction layers, numerical simulation calculation of residual stress on brazed TiC cermets/steel joint was studied by finite element method （FEIVl）. The calculation results show that, when the joint is brazed at 1123 K for 300 s （low brazing parameters）, the maximum shear stress value occurs on （Cu, Ni） layer near TiC cermets, which is 92.16 MPa as the temperature is 300 K. When the joint is brazed at 1273 K for g00 s （high brazing parameters）, the maximum shear stress value occurs on （Cu, Ni）＋（Fe, Ni） layer, which is 39.18 MPa as the temperature is 300 K. The fracture sites of the joints obtained from numerical simulation calculation accord with experimental results.

关键词： Numerical simulation Residual stress Reaction layer Brazing

Microstructure and Strength of Brazed Joints of Ti_(3)Al Base Alloy with Cu-P Filler Metal

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Journal of Materials Science & Technology 2005年第4期21卷 493-498页

作者： Peng HE jicai feng Heng ZHOU National Key Laboratory of Advanced Welding Production Technology Harbin Institute of Technology Harbin 15{}001 China

Brazing of Ti3Al alloys with the filler metal Cu-P was carried out at 1173-1273 K for 60-1800 s. When products are brazed, the optimum brazing parameters are as follows： brazing temperature is 1215-1225 K; brazing time is 250-300 s. Four kinds of reaction products were observed during the brazing of Ti3Al alloys with the filler metal Cu-P, i.e., Ti3Al phase with a small quantity of Cu （Ti3Al（Cu）） formed close to the Ti3Al alloy; the TiCu intermetallic compounds layer and the Cu3P intermetallic compounds layer formed between Ti3Al（Cu） and the filler metal, and a Cu-base solid solution formed with the dispersed Cu3P in the middle of the joint. The interracial structure of brazed Ti3Al alloys joints with the filler metal Cu-P is Ti3Al/Ti3Al（Cu）/TiCu/Cu3P/Cu solid solution （Cu3P）/Cu3P/TiCu/Ti3Al（Cu）/Ti3Al, and this structure will not change with brazing time once it forms. The thickness of TiCu＋Cu3P intermetallic compounds increases with brazing time according to a parabolic law. The activation energy Q and the growth velocity/to of reaction layer TiCu＋Cu3P in the brazed joints of Ti3Al alloys with the filler metal Cu-P are 286 kJ/mol and 0.0821 m2/s, respectively, and growth formula was y2=O.O821exp（-34421.59/T）*** control of the growth for the reaction layer TiCu＋Cu3P can influence the final joint strength. The formation of the intermetallic compounds TiCu＋Cu3P results in embrittlement of the joint and poor joint properties. The Cu-P filler metal is not fit for obtaining a high-quality joint of Ti3Al brazed.

关键词： Brazed joints Microstructure Ti3Al base alloy

Microstructure and Strength of the TiB2 Cermet/TiAl Joint Diffusion Bonded with Ni Interlayer

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Journal of Materials Science & Technology 2003年第Z1期19卷 181-183页

作者： Zhuoran LI jicai feng Jian CAO Yiyu QIAN State Key Lab of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 China State Key Lab of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 China State Key Lab of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 China State Key Lab of Advanced Welding Production Technology Harbin Institute of Technology Harbin 150001 China

Vacuum diffusion bonding of TiB2 cermet to TiAl -based alloys using Ni interlayer has been carried out at 1123～1323 K for0.6～3.6 ks under 80 MPa. The effects of joining parameters on the microstructure of the joints and mechanical propertieswas investigated. The results showed that a TiAlNi2 intermetallic layer and two Ti, Al, Ni solid solution layers were formed atthe interface of Ni/TiAl. The shear strength was 110 MPa with bonding temperature at 1223 K, bonding time for 1.8 ks andbonding pressure under 80 MPa.

关键词： Microstructure, Strength, TiB2, TiAl

Interfacial Microstructure and Mechanical Properties of Al/Mg Butt Joints Made by MIG Welding Process with Zn-Cd Alloy as Interlayer

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Journal of Wuhan University of Technology(Materials Science) 2014年第6期29卷 1258-1264页

作者：张洪涛 DAI Xiangyu feng jicai School of Materials Science and Engineering Harbin Institute of Technology at Weihai

Butt joints between Mg alloy AZ31 B and pure Al 1 060 sheets were produced via metal inert gas welding process with Zn-Cd alloy foil. Crack-free Al/Mg butt joints between AZ31 B Mg alloy and pure Al 1060 sheets were obtained. Intermetallic compound layer 1 and layer 2 had formed in fusion zone/Mg alloy and the average thickness of the layer 1 was about 50 μm. The intermetallic compound layer 1 consisted of Al12Mg17 and Mg2Si phases while layer 2 consisted of Al12Mg17, Mg2Si and Mg Zn2 phases. The crack started from the IMC layer at the bottom of the joint and propagated along the brittle IMC layer, then expanded into weld metal during the SEM in situ tensile test. The highest tensile strength of the dissimilar metal butt joints could reach 46.8 MPa and the effect ofinterfacial IMC layer on mechanical property of the joint was discussed in detail in the present study.

关键词： metal inert gas welding aluminum magnesium microstructure mechanical property

Prediction Models on Distribution of Inherent Strains in T Type Welding Structure

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Journal of Materials Science & Technology 2003年第Z1期19卷 202-204页

作者： Peng HE jicai feng Jiecai HAN Yiyu QIAN National Key Laboratory of Advanced Welding Production Technology HIT Harbin 150001 China National Key Laboratory of Advanced Welding Production Technology HIT Harbin 150001 China National Key Laboratory of Advanced Welding Production Technology HIT Harbin 150001 China National Key Laboratory of Advanced Welding Production Technology HIT Harbin 150001 China

A fundamental theory for the analysis of residual welding stresses and deformation based on the inherent strain distribution along the welded joint is introduced. The method of predicting maximum hardness Hv(y, z) and maximum inherent strain gmax is given. The model T.E.P-Tav-hardness calculation is proposed to predict distribution of inherent strains in T type welding structure. By T.E.P-Tav-hardness calculation, distribution of longitudinal inherent strains can be predicted in T type welding structure, and calculation and experimental results are consistent.

关键词： Inherent strain, Residual welding stresses, T type welding

Characterization,Removal and Evaluation of Oxide Film in the Diffusion Bonding of Zr_(55)Cu_(30)Ni_5Al_(10) Bulk Metallic Glass

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Journal of Materials Science & Technology 2014年第7期30卷 722-730页

作者： Haiyan Chen Jian Cao Xiaoguo Song Jiakun Liu jicai feng State Key Lab of Advanced Welding and Joining Harbin Institute of Technology School of Materials Science and Engineering Harbin Institute of Technology at Weihai

The composition of oxide film of ZrssCu3oNi5Al10 bulk metallic glass was identified by X-ray photoelectron spectroscopy. In addition, the relatively sound joints of bulk metallic glass without macroscopic deformation were obtained by removing the oxide film before diffusion bonding. The joint interfaces were observed by scanning electron microscopy and atomic force microscopy. The hardness of joints near the interface was higher than that far away from the interface, which is attributed to the difference of structural relaxation. According to the result of micro-focused X-ray diffractometry and transmission electron microscopy, the joints retained the amorphous structure when the holding time is less than 20 min. The surface area fraction of oxide film on the interface of joints was detected by ultrasonic inspection. Moreover, the surface area fraction of oxide film is in excellent agreement with the theoretical value calculated by shear strength. The result indicated that surface oxide film is the dominant barrier on the diffusion bonding of bulk metallic glass rather than low atomic diffusion coefficient.

关键词： Bulk metallie glass Diffusion Surface Diffusion bonding Oxide film

Mechanical Properties and Microstructure of 6082-T6 Aluminum Alloy Joints by Self-support Friction Stir Welding

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Journal of Materials Science & Technology 2014年第12期30卷 1243-1250页

作者： Long Wan Yongxian Huang Weiqiang Guo Shixiong Lv jicai feng State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology

The majority of this research has concentrated on developing the self-support friction stir welding（SSFSW） tool which consists of a big concave upper shoulder and a small convex lower shoulder, and procedures for making reliable welds in aluminum hollow extrusion. The 5-mm-thick 6082-T6 aluminum alloy was self-support friction stir welded at a constant tool rotation speed of 800 r/min. The effect of welding speed on microstructure and mechanical properties was investigated. The results of transverse tensile test indicated that the tensile strength of joints increased and the elongation decreased with increasing welding speed. The whole values of microhardness of SSFSW joints increased with increasing welding speed from 10 to 200 mm/min. The defectfree joints were obtained at lower welding speeds and the tensile fracture was located at the heat-affected zone（HAZ） adjacent to the thermo-mechanically affected zone（TMAZ） on the advancing side. The investigation of the flow pattern of the softened metal around the SSFSW tool revealed that the flow pattern of the softened metal was driven by two shoulders and the stir pin. The failure of specimens in tension presented the ductile fracture mode.

关键词： Self-support friction stir welding Aluminum alloy Welding speed Mechanical properties Microstructure Flow pattern