Slow tensile straining of a series of specimens of 304L stainless steel after thermally charging with hydrogen at 31·0 MPa and 350°C resulted in a ductility loss compared with uncharged specimens. The susceptibility to embrittlement was shown to be dependent on the formation of martensite during deformation and, hence, the stability (and composition) of the austenite, but the interface between the austenite and any ferrite stringers acted as a nucleation site for cracking and as a weak propagation path for fracture.
MST/1088
Get full access to this article
View all access options for this article.
References
1.
SIEVERTSA.: Z. Metallkd. 1929, 21, 37.
2.
SYKESC., BURTONH. H., and GEGGc. C.: J. Iron Steel Inst., 1947, 156, 155–180.
3.
A. 2. WEST and J. H. HOLBROOK: ‘Hydrogen effects in metals’, (ed. BernsteinI. M. and ThompsonA.W.), 607-618; 1981, New York, The Metallurgical Society of AIME.
4.
ZAPPFEC. A. and HASLEMM. E.: Trans. AIME, 1946, 167, 281–289.
5.
MILLSR. L. and EDESKUTYF. J.: Chem. Eng. Prog., 52, (11), 477-480.
6.
BLANCHARDP. A. and TROIANOA. R.: Rev. Metall., 1960, 57, 409–422.
7.
HOBSONJ. D. and HEWITTJ.: J. Iron Steel Inst., 1953, 173, 131–140.
8.
WHITEMANM. B. and TROIANOA. R.: Corrosion, 1965, 21, 53–56.
9.
VENNETTR. M. and ANSELLG. S.: Trans. ASM, 1967, 60, 242–251.
10.
BENSONR. B., DANNR. K. and ROBERTSL. W.: Trans. AIME, 1968, 242, 2199–2205.
11.
BRIANTC. L.: Metall. Trans., 1979, 10A, 181–189.
12.
THOMPSONA. W. and BUCKO.: Metall. Trans., 1976, 74, 329–331.
13.
SINGHS. and ALTSTETTERC.: Metall. Trans., 1982, 134, 1799–1808.
LOUTHANM. R. and DERRICKR. G.: Corros. Sci., 1975, 15, 565–577.
16.
DARKENL. S. and GURRYR. W.: ‘Physical chemistry of metals’, 447; 1953, New York, McGraw-Hill.
17.
GUINIERA.: in ‘X-ray crystallographic technology’, (ed. LonsdaleK., 300; 1952, London, Hilger and Watts Ltd.
18.
REEDR. P.: Acta Metall., 1962, 10, 865–877.
19.
ANGELT.: J. Iron Steel Inst., 1954, 177, 165–174.
20.
SOXTONH. I., WESTA. T., and THOMPSONA. W.: in ‘Effect of hydrogen on the behaviour of materials’, (ed. ThompsonA. W. and BernsteinI. M.), 631; 1976, New York, The Metallurgical Society of AIME.
