MICROSTRUCTURAL CHARACTERISTICS AND MECHANICAL PROPERTIES OF SPRAY FORMED HIGH SPEED STEEL FOR WORK ROLL
来源期刊：Acta Metallurgica Sinica2004年第4期
论文作者：J.G.Zhang D.S.Sun H.R.Le J.F.Fan C.D.Zhou Y.J.Lin
Key words：spray forming; high speed steel; microstructure; mechanical properties;
Abstract: The mechanical properties and microstructure characteristics of a high speed steel (HSS) for roll has been studied. As compared with the as-cast HSS, the spray-formed HSS have fine grain and segregation free microstructures. Carbides distribute uniformly. The morphology and types of the carbides in spray-formed HSS are different from those in as-cast HSS. The results of the high temperature tensile experiment show that, as to spray-formed HSS, there is a possibility of superplastic deformation in the range of 780-810 ℃.
J.G.Zhang1，D.S.Sun1，H.R.Le1，J.F.Fan1，C.D.Zhou1，Y.J.Lin1
(1.Baosteel Technical Centre, Shanghai 201900, China)
Abstract:The mechanical properties and microstructure characteristics of a high speed steel (HSS) for roll has been studied. As compared with the as-cast HSS, the spray-formed HSS have fine grain and segregation free microstructures. Carbides distribute uniformly. The morphology and types of the carbides in spray-formed HSS are different from those in as-cast HSS. The results of the high temperature tensile experiment show that, as to spray-formed HSS, there is a possibility of superplastic deformation in the range of 780-810 ℃.
Key words:spray forming; high speed steel; microstructure; mechanical properties;
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