Sains Ma1aysiana 25(4) 1996: 105-110                                                            Sains Fizis dan Gunaan/

Physical and Applied Sciences

Kajian Kakisan Seragam Menggunakan Radiografi Sinar-X

(Uniform corrosion study using X-ray radiography)

Abdul Razak Daud

Program Sains Bahan

Fakulti Sains Fizis dan Gunaan

43600 UKM Bangi Selangor D.E. Malaysia

Azleen Mohd. Zain

Jabatan Sains Nuklear

Universiti Kebangsaan Malaysia

43600 UKM Bangi Selangor D.E. Malaysia

Azali Muhamad

Institut Penyelidikan Teknologi Nuk1ear Malaysia

ABSTRAK

Bagi mengesan perubahan ketebalan keluli akibat kakisan seragam maka radiografi sinar-x teknik imej tunggal dinding tunggal telah digunakan. Kemampuan sinar-x 100 kV-160 kV menghasilkan ketumpatan filem yang sesuai untuk keluli telah juga dikaji. Peta kontur ketebalan bagi spesimen kepingan keluli yang telah mengalami kakisan seragam didapati sepadan dengan peta kontur ketumpatan filem radiografi sinar-x bagi spesimen tersebut. Kajian ini menunjukkan radiografi sinar-x boleh digunakan bagi mengesan penipisan keluli akibat kakisan seragam.

ABSTRACT

A single wall single image x-ray radiographic technique was adopted to investigate thickness variation of steel specimens caused by uniform corrosion. The ability of the 100 kV-160 kV x-rays to produce a meaningful film density for steel was also investigated. The thickness contour maps of corroded steel plates were found matching with the x-ray film density contour maps of the plates. The results confirm that x-ray radiography can be used to detect the thickness reduction of steel caused by uniform corrosion.

RUJUKAN/REFERENCES

Abdul Razak Daud, Azali b. Muhamad dan Lokman b. Zakaria. 1990. Lengkung cirian kepekaan radiografi terhadap ketebalan keluli bagi sinar-x 120 kV-200 kV. Sains Malaysiana 19(2): 99-106.

Arnold, CG., 1983. Corrosion testing techniques. Dalam Corrosion dan Corrosion Protection Handbook, Schweitzer, P.A. (penyunting). Marcel Dekker, Inc, New York.

Bayliss, D.A, dan Chandler, K.A., 1991. Steelwork Corrosion Control. Elsevier Applied Science, London.

Cocks, F.R., 1973. Manual of Industrial Corrosion Standards and Control. ASTM Special Technical Publication 534. American Society for Testing and Materials, Philadelphia.

NDT Group, UTN 1989. Radiography Training Notes for UNDP/IAEA/RCA, Regional Training Course on Radiography, Level III, PPA/T/99, Unit Tenaga Nuklear Malaysia, Bangi.

Page, G.G. Radiography can find corrosion, 1981. The British Journal of NonDestructive Testing 23(5): 244-245.

Serra, E.T. dan Mannheimer, W.A., 1981. On the estimation of the corrosion rates of metals in soils by electrochemical measurements. Dalam Undergroup Corrosion. ASTM Special Technical Publication 741. Escalante, E. (penyunting). American Society for Testing and Materials, Phildelphia. Hlm 111-122.