AFM observation of titanium surface irradiated with an intense pulsed ion beam

Conference · Thu Dec 31 04:00:00 EST 1998

OSTI ID:346870

Hashimoto, Y; Ishizaki, S ^[1]; Yatsuzuka, M ^[2]

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1. Kobe City Coll. of Technology, Hyogo (Japan)
2. Himeji Inst. of Tech., Hyogo (Japan)

Metal surface characterization by irradiation of an intense pulsed ion beam (IPIB) has been studied experimentally and numerically. The IPIB irradiation to metals leads to rapid heating of the surface which is immediately followed by rapid cooling and resolidification, resulting in metal surface modification. An intention is focused on the reduction of machining roughness on a titanium surface. Atomic force microscope (AFM) observation of the titanium surface after IPIB irradiation shows that roughness of the titanium surface reduces to 1/5 of that of non-irradiated titanium. Numerical estimation of surface temperature rise indicates that using the 100 MW/cm{sup 2} IPIB the temperature of surface region within several {micro}m increases exceed its melting point. A comparison of the experimental and the numerical results shows the reduction of surface roughness requires to keep the temperature above its melting point for an enough time in which the melting region is able to move.

• OSTI ID: 346870
• Report Number(s): CONF-980601--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
ION BEAMS
MELTING
ROUGHNESS
SOLIDIFICATION
SURFACE TREATMENTS
TITANIUM