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2 2002

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The investigation of chromium coatings pneumatic ball peening possibilities

Dzierwa A.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2002

z. 58 [193]

67-72

In the article the results of initial researches of chromium coating pneumatic ball peening possibilities are presented. The chromium layers of 50 µm placed on the 40H steel base of 230 HB hardness have been examined. Different times of processing, various degree of the peening traces covering and different stereometrical features of ball-peened surfaces have been achieved.

Temperature changes of substrate surface layers during the peening process

Kniewald D., Brezinova J.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

2002

z. 58 [193]

115-120

Contribution tells about thermal influence of substrate during the shot peening by using measurement with thermocouples and thermo vision technique. For comparison we used temperature characteristics of peening substrates changes during the shot peening by different kind of peening mediums in the process of pneumatic peening. By using thermo vision technique there were measured thermal area extensions.