帮忙用机械专业英语翻译下面的话珠光体是奥氏体(奥氏体是碳溶解在γ－Fe中的间隙固溶体)发生共析转变所形成的铁素体与渗碳体的共析体.其形态为铁素体薄层和渗碳体薄层交替重叠的层状

Question

帮忙用机械专业英语翻译下面的话
珠光体是奥氏体(奥氏体是碳溶解在γ－Fe中的间隙固溶体)发生共析转变所形成的铁素体与渗碳体的共析体.其形态为铁素体薄层和渗碳体薄层交替重叠的层状复相物,也称片状珠光体.用符号P表示,含碳量为ωc＝0.77％.在珠光体中铁素体占88%,渗碳体占12%,由于铁素体的数量大大多于渗碳体,所以铁素体层片要比渗碳体厚得多.在球化退火条件下,珠光体中的渗碳休也可呈粒状,这样的珠光体称为粒状珠光体.
普通热处理分为退火、正火、淬火和回火.
退火是将钢加热到预定温度,保温一定时间后缓慢冷却（通常随炉冷却）,获得接近于平衡组织的热处理工艺.
正火是将钢加热到亚共析钢或共析和过共析钢以上30-50℃,保温适当时间后在静止空气中冷却的热处理工艺.
淬火是将钢加热到亚共析钢或AC1以上30-50℃,经过保温后在冷却介质中迅速冷却的热处理工艺.
回火是把经过淬火的零件重新加热到低于AC1的某一温度,适当保温后,冷却到室温的热处理工艺.

Answer 1

Pearlite is the eutectoid by ferrite and cementite which are formed by eutectoid reaction of austenite (austenite is the interstitial solid solution which is carbon-dissolved in the γ-Fe). The morphology are composite material overlaped by layered thin ferrite and layered thin cementite, also known as flaky pearlite represented by Symbols P and the carbon content ωc = 0.77%. Pearlite contains 88% ferrite, 12% cementite, due to the number of ferrite is much more than cementite in pearlite, so the layer of ferrite is also much more thicker. Under the condition of the ball annealing, the cementite in pearlite can also present grainy, it is called granular pearlite pearlite.
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