Počet záznamů: 1
Ultrasonically generated pulsed water jet peening of austenitic stainless-steel surfaces
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SYSNO ASEP 0490276 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Ultrasonically generated pulsed water jet peening of austenitic stainless-steel surfaces Tvůrce(i) Srivastava, M. (IN)
Hloch, Sergej (UGN-S) RID, SAI, ORCID
Tripathi, R. (IN)
Kozak, D. (HR)
Chattopadhyaya, S. (IN)
Dixit, A. R. (IN)
Foldyna, Josef (UGN-S) RID, ORCID
Hvizdoš, P. (SK)
Fides, M. (SK)
Adamčík, P. (CZ)Celkový počet autorů 10 Zdroj.dok. Journal of Manufacturing Processes. - : Elsevier - ISSN 1526-6125
Roč. 32, č. 32 (2018), s. 455-468Poč.str. 14 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova pulsating water jet ; peening ; residual stress ; acoustic emission Vědní obor RIV JQ - Strojní zařízení a nástroje Obor OECD Mechanical engineering CEP LO1406 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UGN-S - RVO:68145535 UT WOS 000435057100045 DOI 10.1016/j.jmapro.2018.03.016 Anotace In this study, the effects of pulsating water jets were investigated as a surface treatment process using circular and flat nozzles by considering the integrity of a stainless steel (AISI 304) surface. The local energy distribution was controlled by changing the traverse speed and the pulsating water jet (PWJ) effects were assessed in terms of the residual stress and strengthening effect. The strengthening effect of the process was evaluated by measuring the micro-hardness of the treated surface and by studying the impact of the treatment on the surface based on micro-structural analyses using scanning electron microscope (SEM). The residual stress of the subjected area was evaluated using X-ray diffraction technique. Based on the results from the studied samples, it was found that the initial tensile residual stress was relieved and converted to a compressive residual stress. An increase in the hardness of the treated samples was also observed as compared to the untreated samples up to certain depth along the cross-section of the treated region. The micro-structural examination of the samples revealed the plastic deformation that occurred during the treatment process. Additionally, the acoustic emission (AE) generated during the impact was used as an online monitoring tool for observing the behaviour of the elicited signals under different parametric conditions, and as a control mechanism for obtaining better results. The experimental results show that the pulsating water jet constitutes a new potential technology for surface treatment processes. Pracoviště Ústav geoniky Kontakt Lucie Gurková, lucie.gurkova@ugn.cas.cz, Tel.: 596 979 354 Rok sběru 2019 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S1526612518301270
Počet záznamů: 1