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MDGM ordinary steel production in the superalloy substrate, or diffusion coating by high-energy ions MoSi2 , the substrate surface to form the final dense coating MoSi2, MoSi2 is formed buffer layer and the diffusion layer enriched injection of a certain thickness in the substrate surface. 

 

MDGM compared to traditional MoSi2, made ​​an important breakthrough two aspects, the first is to get a breakthrough in manufacturing technology. MoSi2 raw materials are formed by cold pressing or hot pressing sintering method of manufacture, shape, size and accuracy are greatly limited. High Energy Ion plated MoSi2 matrix is ordinary steel or high-temperature alloys are easily machined, shape and size, the accuracy can be guaranteed. High Energy Ion plating on MoSi2 be processed in these parts. Breakthrough technology for the manufacture of a wide range of applications on MoSi2 created very favorable conditions; second breakthrough performance. In the presence of pure MoSi2 products brittle temperature performance, low temperature strength problem. As the overall MoSi2 hard and brittle at room temperature, manufacturing, installation, transportation, use should be very careful, otherwise prone to fracture. Surface MDGM has MoSi2 performance, the internal strength and toughness of the selected matrix, both gradient transition, complementary advantages. At room temperature, MDGM MoSi2 breaking strength of the surface layer is mainly determined by the substrate, the surface layer of MoSi2 and brittle at room temperature continuously. 

 

MDGM not only a good high-temperature ductility, and high temperature strength, low purity MoSi2 solve the problem of high-temperature strength. This is because the oxidation resistance of the matrix can be selected worse, but the good high temperature strength alloy, the alloy components penetrate the surface coating MoSi2, the component at high temperatures, good resistance to external MoSi2 by high temperature oxidation characteristics of the alloy itself against the inner high-temperature creep strength decrease, the formation of external energy oxidation, there are new high-strength superalloys. Since MoSi2 important breakthrough technology and performance, energy-Ion plated molybdenum disilicide graded material products in many locations can take advantage of MoSi2 anti-corrosion, anti-corrosion and high temperature oxidation resistance melting expertise, resulting in chemical, petrochemical, metallurgy, electric power, building materials, light industry, machinery and other industries widely available. 

    

MDGM with corrosion in most acids, bases, salts and other media conditions function (not including oxidizing acids and salt). Corrosion resistant material currently in the market for solving oxidizing acids and salt corrosion problems, has assumed a variety of stainless steel. MDGM mainly for hydrochloric acid, NaOH, KOH, NaCl etc. corrosive media. In these media, MDGM corrosion resistance up to the national standard Class I corrosion resistant material. Therefore, MDSP has been widely used in chemical, petrochemical, metallurgy, electric power, building materials, light industry, machinery and other industries. 

 

MDGM resistant sodium, tin, lead, lithium, bismuth molten metal etching ability. MDGM can manufacture various parts in contact with the molten metal. Float glass production example, the role of the molten solder and cooling the glass is supported. There are many groups insert 250-1000 o C molten tin in tin sump thermostat. Original thermostat with stainless steel, the molten tin solution on stainless steel corroded, life less than a month. After the switch MDGM, life has reached 11 months. Another example is the use of barium chloride, sodium chloride salt bath temperature protective sleeve, and after the switch MDGM, life expectancy increased from one month to six months or more. 

 

MDGM overcome the shortcomings of low-temperature strength MoSi2, it inherits the characteristics of high temperature oxidation resistance, which for high 温时强 high, but less than the high-temperature oxidation resistance of high temperature alloys, the use of shielded type MoSi2 oxidation protection is very meaningful the. It will be used in metallurgy, building materials, electric power, petrochemical, aerospace, military and other industries. MDGM is a new corrosion resistant, heat-resistant material, due to enter the market not long, face a variety, vastly different corrosion, high temperature conditions, when we promote the use of coupon site are first tested to prove that the data conditions MDGM feasible before performing large scale. Welcome people to adopt bold MDGM trial. MDGM are not used in the past, but a very good corrosion resistance, heat resistance of the new material, is looking for senior corrosion, heat-resistant materials industry to provide a new platform of choice. Will soon occupy an important seat corrosion resistant materials in numerous family. 

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