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A. G. Ksenofontov M. Yu. Sinel'nikova I. V. Kozhevnikov M. N. Krylov V. K. Fadeev 《Metal Science and Heat Treatment》1991,33(7):503-505
Conclusions We worked out a regime of high-temperature thermoplastic treatment of steels St3sp and 09G2S consisting in austenization at 1020°C, strain (=200%, =5.7%) at 940°C with subsequent cooling at a rate >100°C/sec.As a result of such treatment the tensile strength of steel St3sp is increased to 1230 N/mm2, of steel 09G2S to 960 N/mm2, and the conventional yield strength to 1100 and 840 N/mm2, respectively.N. É. Bauman Moscow State Technical University. All-Union Research Institute of Metallurgical Machinery Construction. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 18–19, July, 1991. 相似文献
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V. M. Goritskii G. R. Shneiderov T. G. Zaitseva 《Metal Science and Heat Treatment》1990,32(12):891-895
| 1. | Preparation in plate steel 09G2S with water quenching and tempering at 600–680°C of a structure of temper sorbite and polygonal ferrite provides compared with normalizing (ferrite + pearlite) a marked increase in its strength properties and resistance to brittle failure. |
| 2. | The greatest cold resistance and specific work for ductile crack propagation of plate steel 09G2S occurs after quenching and tempering at 630±20°C. |
| 3. | With the aim of improving the reliability of blast furnace jackets against formation of extended brittle cracks it is desirable to use steel 09G2S for the uncooled zone of the bottom in the temper hardened condition, which exhibits improved strength and cold resistance compared with normalized steel. |
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V. I. Bol’shakov D. V. Laukhin G. D. Sukhomlin V. I. Kuksenko 《Metal Science and Heat Treatment》2004,46(11-12):545-550
Parameters ensuring enhanced amount of acicular ferrite in the structure of steels heat treated after individual heating are determined. The influence of various conditions of homogenization and hot deformation, and of the rate of subsequent cooling on the structure and properties of steels 10G2FB and 09G2S is studied. 相似文献
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Metal Science and Heat Treatment - Hot ductility of steel 09G2S is studied in a temperature range of 600 – 1000°C on the branch of cooling after heating to a high (1150°C)... 相似文献
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L. I. Tushinskii E. N. Mironov L. B. Tikhomirova V. A. Ananin 《Metal Science and Heat Treatment》1988,30(9):666-671
| 1. | Steel 09G2S with ferritic-martensitic structure, subjected to stipulated thermoplastic strengthening (STPS), has high indices of structural strength; this opens up prospects of its use in building structures and pipelines. |
| 2. | As a result of STPS, consisting in combined deformation at temperatures of the austenitic region and of the intercritical interval, the structural components of the dualphase steel 09G2S become refined and a substructure forms in the ferrite; this doubles the threshold value of the stress intensity factor and reduces by a factor of about 1.8 the speed of fatigue crack propagation under cyclic load in comparison with the analogous characteristics of steel treated by the standard regime. At that u increases from 800 to 880 N/mm2; from 540 to 650 N/mm2; from 17 to 19%. |
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