8 research outputs found
CALCULATION OF THERMODYNAMIC CONDUCTANCE COEFFICIENTS USING A RELATIONSHIP INCLUDING IONIC MOBILITIES
Relationships have been derived to describe the thermodynamic conductance coefficients by combining the thermodynamic equation and the Debye-H眉ckel-Onsager description of the ionic mobilities.
The relationships can be used for calculating the thermodynamic conductance coefficients Lkk, Laa and Lka
UNTERSUCHUNG VON KORROSIONSINHIBITOREN S脛URIGER BEIZL脰SUNGEN IN DER ANWESENHEIT VON KOMPLEXBILDERN
Corrosion of Soviet and Hungarian carbon steels has been examined in 6% solution of
hydrochloric acid. The virtual activation energy and the frequency coefficient have been
determined with the help of the Arrhenius equation. The corrosion effect of the Fe(III)-ions,
furtheron the inhibitor effect of oxalic acid, sulfosalycilic acid, sodium triphosphate and sodium
fluoride have been investigated
CORROSION AND ELECTROCHEMICAL RESEARCHES
We wish to introduce the work of the research group for corrosion and electrochemistry of
Institute of Inorganic Chemistry, Technical University of Budapest. The main fields of our
investigations were the electrogalvanizing of palladium-nickel alloy-coatings, the study of
the sealing of the anodic oxide-layers, the corrosion-resistance of titanium-carbide steel-
alloys, the effectiveness of inhibitors protecting the steel reinforcement of cellular concrete
and the study of the corrosion effect of chemical agents used for salting winter roads
袠小小袥袝袛袨袙袗袧袠袝 袧袝小袣袨袥鞋袣袠啸 袠袧袚袠袘袠孝袨袪袨袙 袣袨袪袪袨3袠袠 袗袥挟袦袠袧袠携 袙 袪袗小孝袙袨袪袗啸 小袨袥携袧袨袡 袣袠小袥袨孝蝎 孝袝袪袦袨袦袝孝袪袠效袝小袣袦 袦袝孝袨袛袨袦. Issledovanie neskol'kih ingibitorov korrozii al暖mini芒 v rast^vorah sol芒noj kisloty termometri膷eskim metodom
孝袝袩袥袨袙蝎袝 协肖肖袝袣孝蝎, 小袨袩袪袨袙袨袞袛袗挟些袠袝 协袥袝袣孝袪袨袛袧蝎袝 袩袪袨笑袝小小蝎 . Teplovye effekty, soprovo啪da暖艧ie elektrodnye processy
袣袨袪袪袨袟袠袨袧袧袗携 小孝袨袡袣袨小孝鞋 袧袝袪袞袗袙袝挟些袠啸 袩袨袪袨楔袣袨袙蝎啸 孝袙袝袪袛蝎啸 小袩袥袗袙袨袙 TiC-小孝袗袥鞋. Korrozionna芒 stojkost' ner啪ave暖艧ih poro拧kovyh tverdyh splavov TiC-stal'
Corrosion properties of powder metallurgical solidy alloys made of high wear resistance TiC and of corrosion-proof steel has been investigated in NaOH solution of 20% conc., in 10% HNO3, in 3% H2SO4 and in 44% H3PO4 solutions. The corrosion of solid alloys is deteriorating not only the metal, but also reduces its wear resistance. Our preliminary experiments performed with some corrosion-proof steels disclosed that the corrosion resistance of solid alloys made of nickel-free steels with high chrome content is poor. Solid alloys produced of austenite chromonickel steels with TiC proved to be acceptable. These solid alloys did not corrode at all in NaOH, as well as in acidic solutions. In the presence of inhibitors their corrosion resistance is further improved
袣袨袪袪袨袟袠袨袧袧袗携 小孝袨袡袣袨小孝鞋 袠 袠袟袧袨小袨小孝袨袡袣袨小孝鞋 袩袨袪袨楔袣袨袙蝎啸 孝袙袝袪袛蝎啸 小袩袥袗袙袨袙 袧袗 袨小袧袨袙袝 袣袗袪袘袠袛袗 孝袠孝袗袧袗 袠 啸袪袨袦袠小孝袨袡 小孝袗袥袠. Korrozionna芒 stojkost' i iznosostojkost' poro拧kovyh tverdyh splavov na osnove karbida titana i hromistnj stali
TiC-Fe-Cr alloys prepared from titanium-carbide and steel basis metal by powder metallurgy were studied with concerning their corrosion and abrasion resistance in water. Such alloys is used for preparing of pieces exposed to corrosion. Our experiments have indicated that the abrasion is not independent for corrosion resistance. By weak corrosion resistance abrasion decreases too because that the corroded metal do not bound together the hard titanium-carbide grains. Good abrasion is only by good corrosion resistance attainable. The corrosive abrasion is dependent on the hardness only in the case of suitable corrosion resistance of the solid alloys