EFFECTIVE STRESSES AND MICROSTRUCTURE IN CYCLICALLY DEFORMED 316L AUSTENITIC STAINLESS STEEL: EFFECT OF TEMPERATURE AND NITROGEN CONTENT

Fatigue and Fracture of Engineering Materials and Structures - Tập 16 Số 5 - Trang 555-564 - 1993
J. Vogt1, Thierry Magnin1, J. Foct1
1Université de Lille I, Ldboratoire de Métallurgie, URA CNRS 234, Bât. C6, F‐59655 Villeneuve d'Ascq Cédex, France

Tóm tắt

Abstract— This paper reports a study on the factors influencing dislocation slip during cyclic deformation of 316L austenitic stainless steel. TEM investigations show that low temperature and interstitial nitrogen content favour planar slip and lead to higher erective stress values. Measurements of effective and internal stresses with the Handfield‐Dickson technique indicate that the contribution of nitrogen in the effective component is more important than that of temperature. It is deduced that nitrogen acts through a pinning effect, while low temperature exerts an effect on friction stress. The results also suggest that cyclic plasticity could modify the short range order leading to a redistribution of nitrogen.

Từ khóa


Tài liệu tham khảo

Bernard M., 1984, Proc. 2nd Int. Conf on Fatigue and Fatigue Thresholds, Fatigue, 1029

10.1016/0921-5093(89)90060-9

10.1007/BF02665004

Vogt J.‐B., 1990, Factors influencing planar slip during fatigue in FCC stainless steels, 87

10.1002/pssa.2211090115

10.1016/0921-5093(90)90224-Q

Taillard R., 1989, Mechanisms of the action of nitrogen interstitials upon low cycle fatigue behaviour of 316 stainless steels, 387

Wahlberg G., 1989, Interaction between nitrogen and substitutional elements in the austenitic phase of duplex stainless steels, 163

10.1016/0025-5416(84)90083-1

10.1016/0025-5416(79)90074-0

Cottrell A. H., 1953, Dislocations and plastic flow in crystals, 111

J.‐B.Vogt M.BernardandJ. I.Dickson(1984) Unpublished research Ecole Polytechnique de Montrkal.

10.1016/0921-5093(91)90655-7

10.1016/0001-6160(87)90131-3

10.1002/crat.2170210829

10.1016/0921-5093(89)90311-0

10.1080/01418619008244797

10.1016/0921-5093(91)90362-Q

10.1007/BF02402851

Vogt J.‐B., 1990, Low temperature fatigue of a high nitrogen steel, Scand. J. Metall, 19, 273

10.1016/0921-5093(91)90748-C

10.1016/0025-5416(88)90236-4

Degallaix S., 1984, Role of nitrogen interstitials in plastic fatigue of austenitic stainless steels, 49

10.1016/0001-6160(89)90143-0

10.1016/0036-9748(83)90079-0

Thông tin
Thông tin xuất bản

Fatigue and Fracture of Engineering Materials and Structures

Tập 16 Số 5

555-564

Thông tin tác giả