已入深夜,您辛苦了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!祝你早点完成任务,早点休息,好梦!

Achieving superior performance in powder-metallurgy near-β titanium alloy by combining hot rolling and rapid heat treatment followed by aging

材料科学 极限抗拉强度 粉末冶金 合金 冶金 延展性(地球科学) 钛合金 退火(玻璃) 延伸率 体积分数 残余应力 复合材料 微观结构 蠕动
作者
Fucheng Qiu,Tuo Cheng,Yuchao Song,O. M. Іvasishin,Dmytro G. Savvakin,Guangyu Ma,Huiyan Xu
出处
期刊:Journal of Materials Science & Technology [Elsevier BV]
卷期号:171: 24-36 被引量:14
标识
DOI:10.1016/j.jmst.2023.06.034
摘要

Heat treatment plays an important role in tailoring the mechanical properties of powder-metallurgy (PM) titanium alloys. However, only limited work about the rapid heat treatment (RHT) of PM titanium alloys has been reported. In this work, RHT was applied to PM Ti–5Al–5Mo–5V–1Cr–1Fe alloy after hot rolling to study the evolution of its mechanical properties and the influence of residual pores on its properties. Through hot rolling and annealing, a fine and uniform α + β structure with few residual pores is obtained. During RHT, the primary α dissolves gradually and completes in the β region, and the β grains then grow, resulting in the continuous decrease in elongation after aging. Moreover, the tensile strength first increases and then decreases with increasing RHT temperature, owing to the increase in volume fraction of secondary α in α + β region and the β grain growth in β region. In contrast to the RHT of cast-and-wrought titanium, the negative influence of residual pores lowers the RHT temperature for obtaining the highest tensile strength to a temperature below the β-transus temperature. Despite the negative influence of the residual pores, retained primary α and fine β grains with fine secondary α inside contribute to achieving a good strength/ductility balance (1570 MPa and 6.1%, respectively). Additionally, although at higher cycles to failure, the negative influence of residual pores increases as it affects the crack initiation zone at the subsurface, the good resistance of secondary α to fatigue crack propagation still enhances the fatigue strength considerably (about 300 MPa). This work suggests a cost-effective strategy to produce titanium alloys with high performance.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
爱笑的百招完成签到,获得积分10
1秒前
2秒前
乐观乐枫完成签到,获得积分10
5秒前
顺利的飞荷完成签到,获得积分0
6秒前
6秒前
哈哈哈发布了新的文献求助10
6秒前
飞飞完成签到,获得积分10
8秒前
量子星尘发布了新的文献求助10
9秒前
qcy72完成签到,获得积分10
9秒前
hzx发布了新的文献求助10
10秒前
11秒前
暴躁小鸟完成签到,获得积分10
11秒前
爱睡觉的虾米完成签到 ,获得积分10
11秒前
忧伤的摩托完成签到,获得积分10
11秒前
12秒前
小菡菡发布了新的文献求助10
13秒前
烟花应助微笑的八宝粥采纳,获得10
14秒前
农大长工发布了新的文献求助10
15秒前
15秒前
camsLX发布了新的文献求助10
16秒前
Heidi完成签到 ,获得积分10
17秒前
111完成签到 ,获得积分10
21秒前
哈哈哈完成签到,获得积分10
21秒前
微笑的八宝粥完成签到,获得积分10
22秒前
24秒前
刘十一完成签到 ,获得积分10
26秒前
27秒前
28秒前
www完成签到 ,获得积分10
28秒前
song完成签到,获得积分10
29秒前
31秒前
小菡菡完成签到,获得积分10
32秒前
John完成签到 ,获得积分10
32秒前
Limin发布了新的文献求助10
33秒前
34秒前
37秒前
完美世界应助aiai采纳,获得10
38秒前
焦立超发布了新的文献求助10
38秒前
Limin完成签到,获得积分10
39秒前
Blackrose2412完成签到,获得积分10
40秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3976455
求助须知:如何正确求助?哪些是违规求助? 3520548
关于积分的说明 11203728
捐赠科研通 3257156
什么是DOI,文献DOI怎么找? 1798618
邀请新用户注册赠送积分活动 877819
科研通“疑难数据库(出版商)”最低求助积分说明 806523