第1个回答 2009-06-03
Boronizing solid technology development has been the history of a century, the study of the Organization boronizing at home and abroad have done a lot of academics. Through this experiment 0Cr18Ni9Ti stainless steel, A3 steel, 45 steel, T8, CrWMn steel for the same temperature, the same holding time boronizing processing, and optical microscopy (OM) observation and microhardness tests, compared the carbon content of different steel by the same process boronizing boronizing after the effect of carbon content in steel on the microstructure and properties of metal boronizing impact.
Experiments show that: steel by the process after boronizing, are from the boride layer, transition layer, the matrix is composed of three parts of the microstructure; boronizing in the same process conditions, different carbon steel, the boride layer the thickness and morphological characteristics are also different, with the increase in carbon content, the thickness of boride layer become smaller, the form of boride dentate tip inserted from the matrix into a tongue-shaped or flat; carbon content also affects the microstructure of the boride boronizing hardness and quality, microhardness of the borides with the increase of carbon content increased, if less carbon content of the matrix will help to obtain the depth of boride layer, but there will be loose, holes, reduce the surface wear resistance and mechanical properties. If excessive carbon content and is conducive to the formation of transition layer, reducing the hardness gradient boron layer, but will layer thinning, brittle, borides and the substrate combination of variation and reduce its mechanical properties. Therefore, the use of high-carbon steel or low alloy steel can get the best quality of boride layer.
第2个回答 2009-06-03
翻译:
Boronizing solid technology development has been the history of a century, the study of the Organization boronizing at home and abroad have done a lot of academics. Through this experiment 0Cr18Ni9Ti stainless steel, A3 steel, 45 steel, T8, CrWMn steel for the same temperature, the same holding time boronizing processing, and optical microscopy (OM) observation and microhardness tests, compared the carbon content of different steel by the same process boronizing boronizing after the effect of carbon content in steel on the microstructure and properties of metal boronizing impact.
Experiments show that: steel by the process after boronizing, are from the boride layer, transition layer, the matrix is composed of three parts of the microstructure; boronizing in the same process conditions, different carbon steel, the boride layer the thickness and morphological characteristics are also different, with the increase in carbon content, the thickness of boride layer become smaller, the form of boride dentate tip inserted from the matrix into a tongue-shaped or flat; carbon content also affects the microstructure of the boride boronizing hardness and quality, microhardness of the borides with the increase of carbon content increased, if less carbon content of the matrix will help to obtain the depth of boride layer, but there will be loose, holes, reduce the surface wear resistance and mechanical properties. If excessive carbon content and is conducive to the formation of transition layer, reducing the hardness gradient boron layer, but will layer thinning, brittle, borides and the substrate combination of variation and reduce its mechanical properties. Therefore, the use of high-carbon steel or low alloy steel can get the best quality of boride layer.
第3个回答 2009-06-04
谷歌翻译 只可以参考
Boronizing solid technology development has been the history of a century, the study of the Organization boronizing at home and abroad have done a lot of academics. Through this experiment 0Cr18Ni9Ti stainless steel, A3 steel, 45 steel, T8, CrWMn steel for the same temperature, the same holding time boronizing processing, and optical microscopy (OM) observation and microhardness tests, compared the carbon content of different steel by the same process boronizing boronizing after the effect of carbon content in steel on the microstructure and properties of metal boronizing impact.
Experiments show that: steel by the process after boronizing, are from the boride layer, transition layer, the matrix is composed of three parts of the microstructure; boronizing in the same process conditions, different carbon steel, the boride layer the thickness and morphological characteristics are also different, with the increase in carbon content, the thickness of boride layer become smaller, the form of boride dentate tip inserted from the matrix into a tongue-shaped or flat; carbon content also affects the microstructure of the boride boronizing hardness and quality, microhardness of the borides with the increase of carbon content increased, if less carbon content of the matrix will help to obtain the depth of boride layer, but there will be loose, holes, reduce the surface wear resistance and mechanical properties. If excessive carbon content and is conducive to the formation of transition layer, reducing the hardness gradient boron layer, but will layer thinning, brittle, borides and the substrate combination of variation and reduce its mechanical properties. Therefore, the use of high-carbon steel or low alloy steel can get the best quality of boride layer.