Structure changes of high-strength economically alloyed steel 09KhGN2MD (09CrMnNi2MoCu) when tempering
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Purpose of the present investigation is to determine the optimal heat treatment parameters that ensure yield strength over 690 MPa in combination with toughness of at least 35 J/cm2at temperature –70°C in new economically alloyed cold-resistant steel. The effect of various quenching and tempering parameters on mechanical properties, structure of steel and fracture mode of samples after impact tests at temperature –70°C has been studied. The relationship between the properties, structure and fracture mode of steel samples is shown. The optimal heat treatment parameters of new economically alloyed cold-resistant steel are determined.
2018 ◽
Vol 284
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pp. 351-356
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2013 ◽
Vol 58
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pp. 25-30
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2017 ◽
Vol 265
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pp. 712-716
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2010 ◽
Vol 168-170
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pp. 847-851
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2018 ◽
Vol 18
(1)
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pp. 125-135