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金属学报(英文版) 1997
EFFECT OF ELONGATED GRAIN STRUCTURE ON THE MECHANICAL PROPERTIES OF AN Fe_3Al-BASED ALLOY
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Abstract:
1.IntroductionIronaJuminidesbasedonFe3Alaff0rdexcellefltoxidati0nand'c0rrosionresistance.However,limitedductilityatambienttemperatureandasharpdr0pinstrengthabove600"Chavebeenmaj0rdeterrentst0theiracceptanceforstructuralapplicationl'].Recentstudieshavedemonstratedthatthepoorductilityatr0omtemperature(RT)hasbeenattributedtoenvir0nmentalembirttleme.tl-5].Althoughthedetailsofembrittlementarestillunclear,severaleffectiveways,whichcanreducetheembrittlement,havebeenfound.Oneofthemistoobtainel0nga…
