リン添加 Al キルド高張力冷延鋼板の深絞り性と再結晶集合組織(成形性)(<特集>高強度薄鋼板)

概要

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The deep drawability and the recrystallization texture of rephosphorized Al-killed high strength steels (P : 0.07%) were studied as compared with those of a conventional Al-killed steel (P : 0.016%). The rephosphorized Al-killed steel shows a peak γ^^--value at a certain heating rate of annealing as well as the conventional Al-killed steel. However, phosphorus weakens the retardation effect of AIN particles on the recrystallization, which results in a lower γ^^--value and a lower grain elongation ratio. The preferred orientation of the rephosphorized Al-killed steels is {111}<112>, whereas that of the conventional Al-killed steel is {111}<110>. These results are discussed by taking into account the interaction between phosphorus and AIN precipitation.
社団法人日本鉄鋼協会の論文
1982-07-01