Synopsis:Steels containing Te are generally used for free cutting steels. But the effect of Te on mechanical properties and mechanism of grain growth retardation by Te are not well knownyet.The authors have studied the influence of Te on impact properties, tensile properties and austenite grain size of common structural steels at various temperatures.Tellurium compounds were identified by X-ray diffraction with electrolytically extracted residues and by analysis of the compounds using electron probe X-ray microanalyzer.The state of dispersion of telluride was examined by autoradiography using 125m Te isotope. The obtained results are as follows.

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SynopsisA series if flUzdamental experimenls and on-line lesls were conducted for Ihe ulilization if /leu/rO/l moisture gauge in steel indllst~y A method 'If' automatic mo/slure cOlltrol for Ihe sillter raw mixlure as well as all automatic lIloisture cOlltrolmethodfor the blast furnace coke were accomplished.Here ref Jar ted are the principle alld the features of this neutron 1II0isture gauge, the results of the fundamental experimellls, and the cOlldilioll q! control together with some problellls encoulltered du ring the oll-lille lesls.

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