Treatment of various surface treated layers by plasma immersion ion implantation

Blawert, Carsten; Mordike, B. L.; Weisheit, Andreas

doi:10.1016/s0257-8972(97)00064-9

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Studies have been carried out in order to reduce the boronizing temperature and time for the last 40 years. The studies have demonstrated that ion implantation boronizing [14,15], and plasma enhanced boronizing processes [13,[16][17][18][19] are effective for the reduction of the boronizing temperature and time. Lately, studies carried out on plasma boronizing (PB) have been increasing gradually [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Plasma paste boronizing of AISI 8620, 52100 and 440C steels

2011

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In the present study, AISI 8620, 52100 and 440C steels were plasma paste boronized (PPB) by using 100% borax paste. PPB process was carried out in a dc plasma system at temperature of 700 and 800°C for 3 and 5 h in a gas mixture of 70%H 2 -30%Ar under a constant pressure of 4 mbar. The properties of boride layer were evaluated by optical microscopy, X-ray diffraction and Vickers micro-hardness tester. X-ray diffraction analysis of boride layers on the surface of the steels revealed FeB and Fe 2 B phases for 52100 and 8620 steels and FeB, Fe 2 B, CrB and Cr 2 B borides for 440C steel. PPB process showed that since the plasma activated the chemical reaction more, a thicker boride layer was formed than conventional boronizing methods at similar temperatures. It was possible to establish boride layer with the same thickness at lower temperatures in plasma environment by using borax paste.

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Section: Introductionmentioning

confidence: 99%

“…The characterization of boronized steels by using various boronizing processes has been evaluated by a number of investigator [5][6][7][8][12][13][14][15][16]23]. However, there is little literature about characterization of paste boronized steels in plasma environment.…”

Section: Introductionmentioning

confidence: 99%

Plasma paste boronizing of AISI 8620, 52100 and 440C steels

2011

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“…So in the past 20 years, studies have been carried out to decrease the boriding temperature and/or the boriding duration. It has been shown that ion implantation boriding [3,6] and plasma-assisted boriding [4][5][6][7][8] can effectively decrease the boriding temperature. And the application of spark plasma sintering (SPS) technique in boriding effectively lowers the boriding temperature, and shortens the boriding duration at the same time, due to the activation of the pack boriding medium as well as the workpiece with a high current discharge [9].…”

Section: Introductionmentioning

confidence: 99%