| Effects of Nitrogen Ion Implantation in 304 Stainless Steel at High Temperatures. (1998) | |||||||||
Abstract | |||||||||
| THE EFFECT OF VARYING THE TARGET TEMPERATURE (BY CHANGING THE BEAM POWER) ON THE STRUCTURE AND PROPERTIES OF NITROGEN ION IMPLANTED 304 STAINLESS STEEL WAS STUDIED; WITH A BEAM POWER OF 0.1 W/SQ.CM THE TARGET TEMPERATURE IS RESTRICTED TO 150 C; after a dose of 3.5 x 10(17 )N2(+)/sq.cm the microhardness measured at 10g increases by 15%; with a beam power of 1.1 W/sq.cm the target temperature is 500 C; after the same as before, the microhardness increase is 40%; Glancing Angle X-ray Diffraction and Auger depth profiling results suggest that the increased hardness is due to the presence of nitrogen in solution as opposed to complete precipitation; a sample deformed by compression formed and enhanced oxide implantation; this oxide layer appears to have a capping action against the out-diffusion of nitrogen. | |||||||||
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