The research status of Mg-Zn-Al based elevated magnesium alloy, especially the composition design and the microstructure and properties controlling, was reviewed, and the existing problems and the development trend of Mg-Zn-Al based alloy were also analyzed and looked forward to respectively.

The development includes the new theory of composition design of high permeability permalloy,the development of reducing the cost of permalloy through replace high-Ni-alloy by low one,the study of the new wafer core materials used as stereo magnetic head,and the development of iron-loss analysis of the soft magnetic alloy.

The electrochemical characteristics of Mg-based hydrogen storage alloy are expatiated comprehensively and the present actuality of the composition design and preparation technique of Mg-based hydrogen storage alloy are introduced.

The component design,technological process,mechanical property and economical benefit concerning with the 41MnSiV prestressed impressed wire is pre- sented,which is better than other prestressing cold drawn wire used in PCstruc- ture in China.

In this paper,by applying reasonable chemical composition design,casting technique and heat treatment strengthening method,a manufacturing process which could greatly improve the wear resistance and comprehensive mechanical properties of the breaker ring-hammer was studied.

The basic principles,development stages and computer simulation methods involved in glass composition design were reviewed.

Hot rolled strip used for welded gas cylinders have been developed successfully by means of reasonable elements design and controlled rolling and controlled cooling technology by Baotou CSP Plant.