Yu Guifu. The Present Condition and Trend of the Rapidly Quenched Technique[J]. Journal of Materials Engineering, 1991, 0(1): 1-3.
This article makes the brief introduction of the Seventh international Symposium for the rapidly quenched materials, describes the research situation of the repidly quenched technique and its developing trend. The suggestions for the development of rapidly guenched materials in China are proposed also.
Hu Changxin. Advances in the Iron-Carbon Phase Diagram and Its Survey[J]. Journal of Materials Engineering, 1991, 0(1): 4-8.
The iron-carbon phase diagram is the foundation of metallurgy and metalwork.The development of iron-carbon diagram has been reviewed from 1868 up to date.Some prospects about the iron-carbon diagram are proposed.
Liu Runshan. Development and Characteristic of New Bismaleimide Matrix Resin for Advanced Composites[J]. Journal of Materials Engineering, 1991, 0(1): 16-20.
This paper summarizes the recent development of bismaieimide(BMI),and it’s modified resin as an advanced composite matrix.The system,variety and character of this matrix resin is mainly presented in this paper. BMI type resin is appliccable to the high performance composites owing to the most characteristics of this resin according to the demands of advanced composites.
Sun Shoujin, Zhang Mingda. Copper Matrix Composites Prepared by Cu-Fe Coated Carbon Fibers[J]. Journal of Materials Engineering, 1991, 0(1): 21-24.
Carbon fibers were coated with copper prior to with iron by continuous electroplating to form Cu-Fe duplex coating.The high temperature compatibility of carbon fiber with Cu-Fe coating has been studied. CF/Cu-Fe composites were fabricated with Cu-Fe coated carbon fibers by hot-press. The electrical resistivities, flexural strengthes and linear thermal expansion coefficients of CF/Cu-Fe composites were measured.
Hu Wanyu. The Performance and Application of a New Type of Hot-working Die Steel 28Cr2NiMoWVSi[J]. Journal of Materials Engineering, 1991, 0(1): 26-29.
This paper introduces various peformances of a hot-working die steel 28Cr2NiMoWVSi which is developed recently as well as its application. Compare with steel 5CrNiMo, it shows outstanding superiority in high temperature strengh and ductility.
Zhang Mingxing, Hu Guangli, Guo Zonglin. The Influence of Austenitizing Temperature on the Microstmctures and Properties of 30CrMnSiNi2A Steel after Isothermal Quenching[J]. Journal of Materials Engineering, 1991, 0(1): 30-33.
The changes of microstructure of 30CrMnSiNi2A steel after isothermal quenching from various austenitizing temperatures have been studied by using TEM in this paper.It has been found that the retained austenite films between martensite lath got thicker with the increasing of austenitizing temperature. The experimental results show that a small peak can be expected for tensile strength of the steel austenitized at 920℃ and the yield strength shows no significant change below 960℃.
Bu Mingquan. Manufacture of High Strength Cast Zinc-Base Alloy[J]. Journal of Materials Engineering, 1991, 0(1): 34-37.
This article has made an approach on the influence of chemical composition, and heat treatment process of high strength cast zinc-base alloy to the mechanical properties and metallography structure. In the meantime, on the basis of the test compared with ZSn-6-6-3 friction abrasion property, it has been got out that the alloy is a good abrasion-resistant material, it may take the place of tin-bronze to make abrasion-resistant parts, and there is great practical value and applied potentiaty in the industrial production.
Wang Chongsheng, Wu Xuelu, Cai Bocheng, Zhang Lianzeng. Study on Process of Titanium Alloy Corrugated Sheet for Superplasticity Precision Forming[J]. Journal of Materials Engineering, 1991, 0(1): 38-41.
In this paper, the corrugated sheet of titanium alloy for multiwall or composite metallic heat-shield tiles has been described. The research result for superplasticity precision forming has been applied. Titanium alloy corrugated sheet of 0.08mm thickness has been researched. This research is a part of the research of metallic heat-shield tiles for space shuttle.
Li Jianguo, Chu Shuangjie, Liu Zhongyuan, Shi Zhengxing, Fu Hengzhi. Directionally Solidified Superfine Column Structure and Its Growth Condition[J]. Journal of Materials Engineering, 1991, 0(1): 42-44.
A new concept of directionally solidified superfine column structure is put out after a brief review of the relations between solidification microstructures, properties of solidified materials and solidification parameters. And futher research has been done on the superfine column structures of directionally solidified Ni-5(wt)% Cu alloy and a cobalt base K10 superalloy by using the newly developped ZMLMC directional solidification equipment which has a superhigh temperature gradient.
Sun Zhongzi, Li Fengying, Wang Hong. Effect of Phosphorus Content on Property of Co-P Plating[J]. Journal of Materials Engineering, 1991, 0(1): 45-47.
The Co-P plating on the polyethylene terephthalate (PET) substrate is prepared by using autocatalytic plating method. The effect of phosphorus content on property of plating has been investigated. The experiments show that the coercive force, hardness and corrosion resistance are increased along with the increase of phosphorus content in Co-P plating.
Su Xiaoyan, Guo Hongquan, Li Qian, Cao Dingguo. Corrosion Fatigue Crack Growth of Aluminium Alloys LY12-CZ and LC4-CS in Various Environments[J]. Journal of Materials Engineering, 1991, 0(1): 48-51.
The crack growth data in corrosive environments were compared with the crack growth data in lab air. The results showed the significant effects of various environments on the fatigue crack growth. The interactions of aggressive environments with fatigue loads caused the accelerations of fatigue crack growth rates in aluminium alloys LY12-CE and LC4-CS. Among the environments tested the most detrimental one was salt water, which was followed by fog, fog+SO2, and moist air. Compared with alloy LY12-CZ, Alloy LC4-CS was much more susceptible to the environments tested. And the resistance to fatigue crack growth was reduced substantially in corrosive environments.
Wu Guangren. Research on the Critical Crack Length in the Rear Arc Notches of the Canopy Glass of the Fighter[J]. Journal of Materials Engineering, 1991, 0(1): 52-53.
Using the concept of the linear elastic fracture mechanism, and in accordance with the relationship of the critical crack length and the fracture toughness of the canopy glass, this paper solves the fait-safe problem of the crack of 5mm in the rear arc nothches of the canopy glass of Fighter in an operational period of nine years.
