A method of sintering a 17-4PH alloy powder and a sintered 17-4PH sintered part are disclosed. The part is formed by selective laser sintering a 17-4PH alloy powder and binder mixture to form a green part that is sintered to form a part having a substantially pure martensitic structure. The metal powder includes boron. The sintered part may be further processed by shot peening to improve crack resistance.
申请公布号
EP2150368(B1)
申请公布日期
2012.05.16
申请号
EP20080747469
申请日期
2008.05.02
申请人
THE BOEING COMPANY
发明人
LOW, STEVEN C;CLARK, JERRY G.;MUYLAERT, NEAL W.;NORD, RICHARD J.;THOMPSON, BLAIR E.;AKE, BRYAN E.;WILLIAMS, REID W.