Certain features of high-dose and intensive implantation of Al ions in iron

✍ Scribed by A.D Pogrebnjak; O.G Bakharev; N.A Pogrebnjak Jr; Yu.V Tsvintarnaya; V.T Shablja; R Sandrik; A Zecca

• Book ID: 104337999
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 617 KB
• Volume: 265
• Category: Article
• ISSN: 0375-9601
• DOI: 10.1016/s0375-9601(99)00838-5

✦ Synopsis

Using a proton microbeam PIXE and RBS, a formation of local surface segregations of aluminum in an iron layer has Ž 16 17 y2 . been found, for the first time, at an initial stage of high-dose intensive implantation from 8 = 10 to =10 cm . Using a slow positron beam, a profile of vacancy defects, which depth is comparable to a depth profile of Al ions implanted into 17 y2 Ž . iron with 5 = 10 cm has been measured. Complex carbides Fe Al C and Fe C have been found in a near surface layer 3 3 Ž . Ž TEM measurements as well as segregations of an ordered phase Fe Al which with a dose increased are partially 3 . 10 y2

amorphized . In addition, high dislocation density of 1.2 = 10 cm has been found in the near surface layer, and fields of elastic stresses are formed, which results in the increased friction wear resistance and microhardness.