20.500.12556/DKUM-27967 Vpliv reparaturnih zvarov na lastnosti zvarnega spoja Influence of repair welds on the weld-joint properties V predstavljenem delu smo preučevali vpliv reparaturnega varjenja na mehanske lastnosti in zaostale napetosti. Poseben problem so začetki in konci reparaturnih zvarov. Reparaturni zvari so po večini kratki, varimo pa jih na že obstoječi var. Lokalno se spremenijo lastnosti materiala vara, ki v kombinaciji s škodljivimi nateznimi zaostalimi napetostmi lahko pomenijo nevarnost za pojav kthkega loma. V tej raziskavi so bile zaostale napetosti izmerjene pred reparaturnim varjenjem in po njem ter nato primerjane med seboj. Po reparaturnem varjenju dobimo bolj neugodno porazdelitev zaostalih napetosti, ki jim je treba posvetiti posebno pozornost. The influence of repair welding on the mechanical properties and residual stresses has been studied. Special problems are associated with the start and end of repair welds. Repair welds are usually short and they are deposited on an existing weld. The mechanical properties can be changed. The interaction between the weak material and the harmful tensile residual stresses increases the risk of brittle fracture. Residual stresses were measured before and after repair welding and compared with each other. The distribution of residual stresses after repair welding is more inconvenient than before the repair welding. This is the reason why special attention has to be paid to this distribution. varjenje zvarni spoji zaostale napetosti reparaturni zvari trdota welding welded joints residual stresses repair welds hardness true false true Slovenski jezik Angleški jezik Znanstveno delo 2012-06-01 13:19:46 2012-06-01 13:19:46 2022-04-15 13:46:10 2021-04-11 03:28:42 2001 0 0 str. 61-64 št. 1/2 Letn. 35 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1580-2949 621.791.05:620.17:539.53 106193664 6213910 1580-2949 URN:SI:UM:DK:0UOCH7CG Materiali_in_tehnologije_2001_Vuherer,_Rojko,_Gliha_Vpliv_reparaturnih_zvarov_na_lastnosti_zvarnega_spoja.pdf Materiali_in_tehnologije_2001_Vuherer,_Rojko,_Gliha_Vpliv_reparaturnih_zvarov_na_lastnosti_zvarnega_spoja.pdf 1 FD93477804AF449BF6AADFD5BF57F63B bd4ef62028586f69fb086c791a3db80c49d1984e6e7fd675b6065ab93a92438a 4acc5805-7c07-11eb-bb7a-00155d0001ca 20.500.12556/dkum/92beb18a-4eb9-4c96-9f59-85a597f9f9b2 https://dk.um.si/Dokument.php?lang=slv&id=110169 http://mit.imt.si/Revija/izvodi/mit0112/vuherer.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=110170 Fakulteta za strojništvo 0 0 0