Acta Mechanica Slovaca 2012, 16(4):56-62 | DOI: 10.21496/ams.2012.041
Hardness Variations on a Hydrogenated Tin Brass Heat Exchanger
- Al-Balqa Applied University, College of Engineering, Materials and Metallurgical Eng Al-Salt 19117
Tin brass heat exchanger tube was hydrogen charged under different cathodic charging conditions. The introduction of charged hydrogen into tin brass tube was found to induce hardening on its surface. The severity and the depth of the hardened region was observed to increase with either cathodic current density or charging time. Ageing after charging results in either complete or partial recovery of hardness, depending on the charging conditions applied to heat exchanger tube.
Keywords: Tin brass Heat Exchanger, Microhardness, Hydrogen
Received: January 15, 2012; Accepted: February 15, 2012; Published: October 31, 2012 Show citation
References
- Iost A, Vogt J B, Scr. Mater., 37 (1997) p 1499.
Go to original source...
- Panagopoulos C and Papapanayiotou P, J. Mater. Sci.30 (1995) p 3449.
Go to original source...
- Watson J W, Shen Y Z, Meshii M, Metall. Trans. A, 19A (1988), p 2299.
Go to original source...
- Eastman J, Heubaum F, Matsumoto T, Birnbaum H K, Acta. Metall., 30 (1982) p 1579.
Go to original source...
- Robertson I M, Birnbaum H K, Acta Metall., 34 (1986) p 353.
Go to original source...
- Tabata T, Birnbaum H K, Scr. Metall., 17 (1983) p 947.
Go to original source...
- Tabata T, Birnbaum H K, Scr. Metall., 18 (1984) p 231.
Go to original source...
- Matsui H, Kimura H, Moriya S, Mater. Sci. Eng., 40 (1979) p 207.
Go to original source...
- Moriya S, Matsui H, Kimura H, Mater. Sci. Eng., 40 (1979) p 217.
Go to original source...
- Kimura H, Matsui H, Metall., 21 (1987) p 319.
Go to original source...
- Hirth J P, Metall.Trans., A, 11A (1980) p 861.
Go to original source...
- Matsumoto T, Easman J, Birnbaum H K, Scr. Metall., 15 (1987) p 1033.
Go to original source...
- Matsui H, Kimura H, Moriya S, Mater. Sci. Eng., 40 (1979) p 207.
Go to original source...
- Kimura A, Kimura H, Mater. Sci. Eng., 77 (1986) p 75
Go to original source...
- Zapplffe C, Sims C, Tarns. AIME, 145 (1941) p 225
- Tetelman A S, Roberston W D, Tarns. AIME, 224 (1962) p 775
- Troiano F, Hydrogen embrittlement and stress corrosion cracking, American Soc. For metal (1984) p 309
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