公开(公告)号：KR1020130009639A

公开(公告)日：2013-01-23

申请号：KR1020120075100

申请日：2012-07-10

Applicant: 에프엠더블유 컴포지트 시스템즈, 아이엔씨.

Inventor： 윌리엄엠.하누시아크 ,  세샤챠리울루타미리사칸달라 ,  로버트그라보우

IPC: C22F1/18 ,  C22C14/00

CPC classification number: C22C14/00 ,  B22F2998/00 ,  C22C1/0458 ,  C22C1/1042 ,  C22F1/04 ,  C22F1/05 ,  C22F1/18 ,  C22F1/183 ,  B22F3/15

Abstract: PURPOSE: Method of making high strength-high stiffness beta titanium alloy is provided to produce TiB(titanium boride) precipitates by a suitable method such as a pre-alloyed powder metallurgy technique, thereby improving mechanical properties of beta titanium alloys, Ti-5553. CONSTITUTION: A method of making high strength-high stiffness beta titanium alloy comprises introducing boron into a beta titanium alloy to produce TiB precipitates; heat treating the titanium alloy with TiB precipitates by homogenization above the beta transus temperature of the alloy; subjecting the heat treated alloy to a hot metalworking operation below the beta transus temperature; heat treating the worked alloy with a solution treatment below the beta transus temperature; and ageing the solution treated alloy below the beta transus temperature. The TiB precipitates are accomplished by a casting, cast-and-wrought processing, powder metallurgy techniques such as gas atomization and blended elemental approach. The titanium alloy powder is consolidated by hot isostatic pressing. [Reference numerals] (AA) Spare alloy powder; (BB) Powder compaction; (CC) Homogenization; (DD) Hot processing; (EE) Hot treatment

Abstract translation: 目的：提供高强度高刚度β钛合金的方法，通过合金化的粉末冶金技术等合适的方法制备TiB（硼化钛）沉淀物，从而改善β钛合金Ti-5553的机械性能。 构成：制造高强度高刚度β钛合金的方法包括将硼引入β钛合金中以产生TiB沉淀物; 通过高于合金的β转变温度的均匀化将钛合金与TiB沉淀物进行热处理; 对经热处理的合金进行低于β转子温度的热金属加工操作; 用低于β转子温度的溶液处理对加工的合金进行热处理; 并将溶液处理的合金老化到β转子温度以下。 TiB沉淀物通过铸造，铸造和锻造加工，粉末冶金技术如气体雾化和混合元素方法实现。 钛合金粉末通过热等静压进行固结。 （附图标记）（AA）备用合金粉末; （BB）粉末压实; （CC）均质化; （DD）热加工; （EE）热处理