ductility factorとは 意味・読み方・使い方

In the high strength and high ductility steel sheet having excellent weldability, within crystal grains, retained austenite with the average grain diameter of ≤500 nm is contained in 3 to 20% by a space factor as a second phase structure, and also, the concentration of C is ≤0.1 mass%.例文帳に追加

結晶粒内に、第２相組織として平均粒径５００ｎｍ以下の残留オーステナイトが占積率で３〜２０％含まれ、且つＣ濃度が０．１質量％以下である溶接性に優れた高強度高延性鋼板を開示する。 - 特許庁

Regarding the steel sheet having high strength and excellent ductility, and also having excellent chemical convertibility and plating properties, retained austenite with a mean grain size of ≤500 nm is comprised in crystal grains at a space factor of 3 to 20% as a second phase structure, and the concentration of Si is ≤0.8 mass%.例文帳に追加

結晶粒内に、第２相組織として平均粒径５００ｎｍ以下の残留オーステナイトが占積率で３〜２０％含まれ、且つＳｉ濃度が０．８質量％以下である高強度で延性に優れ、且つ化成処理性やめっき性に優れた鋼板を開示する。 - 特許庁