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| THE M-A STRUCTURE AND BAINITE IN ULTRA HIGH STRENGTH LOW ALLOY STEELS |
| by ZHONG Bingwen; SONG Yuwen (Institute of Aeronautical Materials; Beijing) |
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Cite this article:
by ZHONG Bingwen; SONG Yuwen (Institute of Aeronautical Materials; Beijing). THE M-A STRUCTURE AND BAINITE IN ULTRA HIGH STRENGTH LOW ALLOY STEELS. Acta Metall Sin, 1986, 22(4): 11-144.
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Abstract An observation under TEM was made of the (M-A) structure and "bamboo shaped" bainite in the isothermally quenched ultra high strength steels containing Si after the isothermal transformation The retained austenite in the isothermal structure of bainite region at temperature≥300℃ is often found in the M-A and "bamboo shaped" bainite In the bainite formed isothermally at 180, 300, 320 and 420℃, the ε-carbide is observed. The type of carbide in decomposition products is related to the distribution and morphology of retained austenite. The ε-carbide may precipitate along the austenite side of martensite/austenite boundary.
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Received: 18 April 1986
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8 李春志,物理学报,28(1979) ,314．? |
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