公开(公告)号：US20230212726A1

公开(公告)日：2023-07-06

申请号：US17928531

申请日：2022-03-25

Applicant: A.L.M.T. Corp

Inventor： Takeshi IIKURA ,  Takanori KADOKURA

IPC: C22F1/18 ,  C22C27/04 ,  C22C1/04 ,  B22F1/05 ,  B22F3/10 ,  B22F1/145

CPC classification number: C22F1/18 ,  C22C27/04 ,  C22C1/045 ,  B22F1/05 ,  B22F3/10 ,  B22F1/145

Abstract: A ratio of an angle of 2 to 15° is 50% or more in an arbitrary surface of the tungsten material, the angle being formed between a specific crystal orientation of a first crystal grain and a specific crystal orientation of a second crystal grain adjacent to the first crystal grain.