Wan Xiaoru. Development of Advanced Highly Alloy of Secondary Hardening Ultrahigh-Strength Steels[J]. Journal of Materials Engineering, 1994, 0(11): 1-5.
The development of ultrahigh-strength steels containing high Co and high Ni HY180、AF1410 and AerMet100 is discribed in this review.The AerMet 100 steel has outstanding combination of properties:high strength and hardness with high fracture toughness and ductility,and offers exceptional resistance to stress-corrosion cracking and fatigue compared with other ultrahihg-strength steels.This steel will have wider application prcopects.
Shen Chao, Chen Xiangbao. Applications and Development of PMR-15 and its Composites[J]. Journal of Materials Engineering, 1994, 0(11): 6-9.
This paper reviews the chemistry,fabrication of prepregs and comosites,and properts and applications of composites of the high temperature resistant polymide PMR-15.The development of PMR-15 is also been introduced.
Tao Chunhu, Zhang Shaoqing, Wang Shoukai, Yu Jiantong. XD Synthesis-New Technology for Fabrication of Metal Matrix Composite[J]. Journal of Materials Engineering, 1994, 0(11): 10-12.
XD (exothermic dispersion) syntnesis for the metal (or intermetallic) matrix compeite reinforced with particles has been described and the porspective of XD has been analysed.
Liang Bin. The Surface Treatment of Polyvinyl Fluoride[J]. Journal of Materials Engineering, 1994, 0(11): 13-14.
This paper presents some procedures to treat the surface of polyvinyl fluoride film,analyses the advantage and disadvantage of these procedures,introduces two procedures which can be effectively used intreating the surface of continiously manufacted PVF film.
Liu Rongmin, Zhang Xinhua, Guo Zhenfang, Gu Guohong. The Effect of Adding EVA on Propert ies of Model Materials of Investment Casting Blade[J]. Journal of Materials Engineering, 1994, 0(11): 17-18.
By performance test of strength,shrinkage,etc,one sort of EVA is selected,as additive which isfit for model material of investment casting.The most suitable range is also defined.
Zhang Saowei, Xiao Kui. The Effect of Cooling Rate from Solution Treatment on the Microstructure and Mechanical Properties of low Thermal Expansion Alloy Incoloy907[J]. Journal of Materials Engineering, 1994, 0(11): 19-.
The effect of cooling rate from solution treatment on the microstructure and mechanical properties of Incoloy 907 has been studied in various media.It was determined that rapid cooling after solution treatment resulted in extensive precipitation of ξ phase,improvements in 540℃ notch stress rupture life and decreases in tensile strength.Howerer,slow cooling from solution treatment had a quite reverse result.Results of this investigation property through control of the cooling rate after solution treatment.
Zhong Ping, Gu Baozhu. The Influnces of Aging Temperatures on Microstructure and Mechnical Properties of 16NiCo Steel[J]. Journal of Materials Engineering, 1994, 0(11): 23-.
The influence of aging process on microstructure and mechnical properties of 16NiCo steel have been studied.The results show that steel aged at 440℃ shows secondary-hardening peak.This is attributed to M2C coherent precipitated at matrix dislocations.Aging at 420～440℃ tempered martensite embrittlement was observed.Temper embrittlement which occurs at 550℃ tempering is reversible.
Ma Wenke, Gan Jinglin, Zhang Tixin. The Development of Microstructure and Mechanical Properties in Different Area of ZT3 Titanium Alloy Circular Castings[J]. Journal of Materials Engineering, 1994, 0(11): 27-30.
The report researched the micrcatructure and mechanical properties in different arca of ZT3 casting titanium case formed from chill and machined graphite build-up molds centrifugal casting processes.Results showed that then were stable and dependable for microstructure and mechanical properties of ZT3 casting titanium case.It was fully satisfactory for demands on aero-engine using.It can work safetyand dependably for a long time.
Zhang Yanhua. Thermal Stresses Relaxation in the Design of Bonded Joints of Dissmilar Materials[J]. Journal of Materials Engineering, 1994, 0(11): 31-32,40.
In this paper the thermal stresses in bonded joints of dissimilar materiais and some influence factors are discussed.It is pointed that the matching of material properties and joint geometry is fundamental to the thermal stresses relaxation in the design of joints of dissimilar materials.
Liu Junhai, Su Qisheng, Lu Mingzhu. Measuring System for the Expansion Coefficient of Coating[J]. Journal of Materials Engineering, 1994, 0(11): 36-38.
A new type of measuring system for the exponsion coefficient of coating is described in this paper.It is made of the main machine and the electronic control system.The new measuring system can be used to determine the thermal expansion coefficient of material surface coating by surface processing technology in micron or sub-micron scale,and for the other study on coating expansion.
