Effect of double annealing treatments on Ti-10V-2Fe-3Al alloy by directed energy deposition

被引：4

作者：

Deng, Hongwen ^{[1
,2
,5
]}

Jiao, Zongge ^{[1
,2
,5
]}

Cheng, Xu ^{[1
,2
,3
]}

Qi, Shijie ^{[1
,2
,5
]}

Tian, Xiangjun ^{[1
,4
,6
]}

Wang, Yudai ^{[1
,2
,3
]}

Zhang, Shuquan ^{[1
,4
]}

机构：

[1] Beihang Univ, Natl Engn Lab Addit Mfg Large Met Components, Beijing, Peoples R China

[2] Beihang Univ, Beijing Engn Technol Res Ctr, Laser Direct Mfg Large Crit Met Component, Beijing, Peoples R China

[3] Beihang Univ, Res Inst Frontier Sci, Beijing, Peoples R China

[4] Beijing Yuding Addit Mfg Res Inst Co Ltd, Beijing, Peoples R China

[5] Beihang Univ, Ningbo Inst Technol, Ningbo, Peoples R China

[6] Beihang Univ, Natl Engn Lab Addit Mfg Large Met Components, 37 Xueyuan Rd, Beijing 100191, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Additive manufacturing; directed energy deposition; Ti-10V-2Fe-3Al; microstructure; mechanical property; metastable beta titanium alloy; MECHANICAL-PROPERTIES; TITANIUM-ALLOY; MICROSTRUCTURAL EVOLUTION; TENSILE PROPERTIES; HEAT-TREATMENT; TI-6AL-4V; BEHAVIOR; PHASE; TI-5AL-5MO-5V-1CR-1FE; BUILDS;

D O I：

10.1080/02670836.2023.2182928

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to improve the mechanical property of Ti-10V-2Fe-3Al (TB6) metastable beta titanium alloy made by directed energy deposition (DED) technique, a group of double annealing treatments were designed. The microstructure and mechanical properties changing after every heat treatment step were systematically investigated. Compared with the traditional solution and aging heat treatment, a microstructure of the fork-like primary alpha phase (alpha(p)) and plate-like secondary alpha phase (alpha(s)) were observed after the new-designed double annealing treatment which the first annealing temperature was below beta-transus with the ductility of the alloy increased significantly with slight strength reduction. The optimal tensile properties were obtained by the double annealing treatment with the first annealing temperature above beta-transus (820 degrees C/2 h, AC + 520 degrees C/8 h, AC).

引用

页码：1792 / 1801

页数：10

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