简介：Lowercontentofcarboncanfurtherimprovethestressrupturelifeofp-modifiedDA718alloyuptomorethan270%.Meanwhile,theductilityofthealloydecreasedalittle.Moreboronatomsdissociateduetodecreasingcarboncontentandinteractwithphosphoruswhichbringsthelongerstressrupturelifeofthealloy.Lesscarbonmayinducemorephosphorussegregatinginthegrainboundaryandresultinbrittleness.
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