Precipitation induced recrystallization -Clarification of new recrystallization phenomena and its application to texture control

研究了初始α晶界和板条马氏体组织对沉淀诱导再结晶（PIR）的影响。在取向差大于5 °的晶界处，再结晶晶粒的长大受到抑制，导致新的铁素体晶粒在这些晶界处形成。发现PIR出现在奥氏体高铬合金中，其中奥氏体通过Ni的添加而稳定。这意味着当沉淀物的体积分数较高时，PIR通常可以发生而与基体的晶体结构无关。

The effects of initial α grain boundary and lath martensite structure on precipitation induced recrystallization(PIR) have been investigated. The growth of recrystallized grains is inhibited at the boundary misoriented larger than 5 degrees, resulting in the formation of new ferrite grain at these boundaries. The PIR was found to appear in the austenitic high-Cr alloy in which austenite is stabilized by the Ni addition. This implies that the PIR can takes place generally regardless of crystal structure of the matrix when the volume fraction of precipitate is higher.