Microstructure characterisation of a high strength steel weld metal containing the novel constituent coalesced bainite
نویسندگان
چکیده
An experimental high strength steel weld metal containing 7 wt. % nickel and 2 wt. % manganese was found to have a complex microstructure. Employing high resolution characterisation techniques the microstructure consisted primarily of a mixture of martensite, upper bainite and a novel constituent with large grain size that contained plate-like precipitates. This constituent was characterised to have a ferritic matrix with cementite precipitates. Considering morphology, crystallography and recorded phase transformation temperatures it was concluded the novel constituent was a variant of bainite best described as coalesced bainite.
منابع مشابه
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