No. 1, 1998 - Tribology in Industry

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though there were also published articles from other areas of tribologry. In last several years, however, in both issues (in Serbian and English) are present papers from almost all areas of tribology. In the Journal are present papers from Tiibology o[ manufacturing processes (cutting and metal forming), Tiibology of machine elements, Tiibomaterials, Application of lubricants and lubrjcation systems, Diagnostics and maintenance of the tribosystems, Tiibometry, and Terotechnologv. In past nineteen years, the largest number of papers were published by authors that were employed at Yugoslav Universities, scientific institutions and research departments in leading industrial systems. However, in last years, are present more and more papers of domestic authors that are working in inclustrial systems on jobs of ploclucts clevelopment, technology or rnaintenunce of the production and other equipnrcnt. The significant number of paperswas published in the Journal by authors from Slovenia, Croatia and Bosnia, until 1991. The Journal TRIBOLOGY IN IN- DUSTRY rvas all these years, and still is, the only Journal of scientifi character, frorn the area clf Ti'ibcrlogy, on wider former Yugoslavian spaces, from Ljubljana to Skopic. About one third of all papers was published by foreign authors. Among them there were papers written by authors from Russia, Belerrus, England, United States, Polancl, Greece, Bulgaria, Ronrani a, Japan, Germany and Slovakia. The users of the TRItsOLOGY IN INDUSTR Journal rvere. until 1991.. all the libraries of all tlniversities, Faculties of Mechanical Engineering, and Scientific institutes in Republics of former Yugoslavia, as well as all the larger and medium size industrial systems of metal working industry on those spaces. The number of users had decreased since 1991., from known reasons, so todzry the Journal is sent to about 220 users in Yugoslavia and 60 in other countries. Until 1991. the greater part of puhlislrirrg costs wus crtveretl from the sclling of the Journal, through subscription. Last several years, the Journal is being published mainly due to financial support of Ministry for Science and Technologry of Republic of Serbia and Federal Ministry for development, science and environment, since due to existing state of the domestic industry, it was not possible to prov'ide for enough financing from subscriptions. In this year, in which the Journal TRIBOLOGY IN INDUSTRY comes twentieth time before domestic and foreign scientific and expert public, with both issues in Serbian and English, the special efforts will be done for Journal to enter iill the environnents where jobs are done, of both scientific ancl e.rpert character, that are concerned with rnaking the greater gross product through decreasing the production costs and increasing the work produ,-'tiviry. The productivity Ievel in our industrial systems and the low cross national product per capita, are consequences, to the great extent, of insufficiently organized constant fight for reducing the iriction and wear, in numerous tribo-mechanical systems both in industry and transport. The effort is going to be done, througlr Journal TRIBOLOGY IN INDU- STRY, to point out to a large number of people to the fact, known in all the developed countries, that, by application of existing. and creation of the new tribological knowleclge, the conditions arc clcirted for increasing significantly, both gross national product and productivity of exiting industrial and transportation systems, even without expensive investments ancl introducing the new technoli.rgies. Erpelience frorn the developed worlcl point that by application of tribological k-nowledge and solutions, even 40 times larger profit can be realized rvith respecl to investments. In some industrial systems energy consurnption decrease, through application of tribological knowledge, lvas as much as 10 %. It is useful, on this occasion too, to remind ourselves that by application of trilrrrlor-lictrl soltttiorts, sirvings irre also realized by lowering the maintenance costs, lowering the production costs, that are appearing due to breaks in production processes caused by rvear of elements and production and other equiprnent, by lowering the investnrents into the new eqr-riprnent (the working life is increasecl fclr the existing equipnrent), by lo"vering the consunrption of lubricants arrtd by lowenng t.he latror costs. In Jubilee vear, an issue is going to be reserved forpublishing the review papers from different areas of tribology, in order to provide for the readers the useful insight into the exsting level of our knowledge, and to create conditions for fbnning the new research progriilxs and new approaches to application of existing knowledge from the area of tribology in industrial and Iransportlrt ion systems. 'fribologt itt itultLrtty, Volurne 20, No. 1, 1998.
UDK 62i.9.025.?.003 C. GHEORCHTES, O. GHEORGHIES Prediction of Case-hardening Steel Behaviour in Rolling Tribosystem I O cf |'rl U) tlJ cc Irt order to follow the tribol
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No. 1, 1998 - Tribology in Industry

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