Effect of chromium alloying and complex modification on structures and properties of white cast iron;

An approach to improving anti-wear property of white cast iron;

The microstructure and mechanical properties of a new type wear-resistant white cast iron with the boride as wear-resistant phase were investigated.

Tensile behavior of gray cast iron with directional graphite flakes

This pure α-Al2O3 coating were used to high speed cutting of gray cast iron in our study,for solving the problem that κ-Al2O3 coating or κ-Al2O3 and α-Al2O3 coating couldn't be applicative stably in high speed cutting.

8%SiC)suggested by multi-factor regression analysis,the wear resistance layers on the surface of HT200 gray cast iron of about 3mm depth is obtained,and its wear resistance is 2.

The study of behavior of graphite phase in the laser hardening layer of gray iron;

In order to find a quick and accurate test method for discriminating the nodular iron from the gray iron on the production spot, ultrasonic attenuation tests were conducted on both the nodular iron and gray iron specimens with different thicknesses by adopting the ultrasonic waves with different frequencies.

Through the single factor test on gray iron added with Cr、Al、Cu respectively,the effect of the three elements on the cast structure and corrosion resistance has been analyzed.

Structure and corrosion behavior of the high silicon cast iron in several different environments have been tested by means of weight-loss analysis and metallograph,and compare the corrosion resistant of high silicon cast iron with common gray iron and white iron.

According to their matrix structure, the white irons are divided into ferrite white iron, ferrite-austenite white iron, austenite white iron, pearlite white iron and martensite white iron.

By adjusting composition and adopting step quenching process,the hardenability of the medium chromium white iron was improved,its wear resistance is equivalent to that of the Ni-hard IV,and higher than Ni-hard I by20%～30%.