acicular martensite

基本解釋

Mainly its metallographic structure consists of acicular ferrite and martensite.
鋼的組織主要由針狀鐵素體和馬氏體兩相組成。
The results showed that the microstructure of the steel was mainly composed of fine island-like martensite and acicular ferrite, with a 27.6% of martensite volume fraction.
結(jié)果表明：試驗(yàn)鋼的組織由細(xì)小島狀馬氏體與針狀鐵素體為主構(gòu)成，馬氏體體積分?jǐn)?shù)為27．6%。
The existence and amount of small isolated martensite between the acicular ferrite play an important role in determining the tensile strength and low temperature impact toughness of the steels.
其中針狀鐵素體之間細(xì)小的馬氏體的存在與數(shù)量對(duì)鋼的抗拉強(qiáng)度和低溫沖擊韌性起關(guān)鍵作用。