清晨好,您是今天最早来到科研通的研友!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,伴您科研之路漫漫前行!

Location-related thermal history, microstructure, and mechanical properties of arc additively manufactured 2Cr13 steel using cold metal transfer welding

材料科学 微观结构 马氏体 延展性(地球科学) 铁氧体(磁铁) 复合材料 脆性 相(物质) 冶金 蠕动 有机化学 化学
作者
Jijiang Ge,Jian Lin,Yongping Liu,Hanguang Fu
出处
期刊:Materials Science and Engineering A-structural Materials Properties Microstructure and Processing [Elsevier BV]
卷期号:715: 144-153 被引量:83
标识
DOI:10.1016/j.msea.2017.12.076
摘要

The wire arc additive manufacturing (WAAM) 2Cr13 thin-wall part was deposited using robotic cold metal transfer (CMT) technology, and the location-related thermal history, densification, phase identification, microstructure, and mechanical properties of the part were explored. The results show that pre-heating effect from previously built layers can be effectively used to reduce residual stresses; cooling rate firstly decreased rapidly and then kept stable in the 15th–25th layers. The peaks of the α-Fe phase of the AM part drifted slightly toward a relatively smaller Bragg's angle as a result of solute atoms incorporation when compared with that of the base metal. Small amounts of pores were present with the absence of cracks in different layers, being indicative of a high densification level. As-deposited microstructure consisted of martensite and ferrite, along with (Fe, Cr)23C6 phase precipitated at α-Fe grain boundaries. Martensite content increased gradually from the 5th layer to the 25th layers, indicating that metastable martensite partly decomposed into stable ferrite due to the carbon atoms diffusion. The hardness and UTS changed slightly in the 05th–15th layers and then increased quickly from the 20th layer to the 25th layers at the expense of ductility; the fracture process transformed from ductile (01st–10th layers) to mixed-mode (15th–20th layers), and finally to brittle fracture (25th layer). The findings above suggest that, despite the emergency of few pores and slightly inadequate ductility, this robotic CMT technology is a feasible method to obtain desired microstructures and enhanced mechanical properties for the WAAM 2Cr13 part in comparison with its as-solutioned counterpart.
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
16秒前
香蕉觅云应助科研通管家采纳,获得10
21秒前
Owen应助科研通管家采纳,获得10
21秒前
海藏进星辰完成签到,获得积分10
35秒前
卷卷完成签到,获得积分10
39秒前
42秒前
ktw完成签到,获得积分10
43秒前
kmzzy完成签到,获得积分10
1分钟前
科研通AI2S应助科研通管家采纳,获得10
2分钟前
3分钟前
3分钟前
一条摆摆的沙丁鱼完成签到 ,获得积分10
4分钟前
4分钟前
yyf发布了新的文献求助10
4分钟前
claud完成签到 ,获得积分0
4分钟前
yyf完成签到,获得积分10
4分钟前
ffdhdh完成签到,获得积分10
4分钟前
白天科室黑奴and晚上实验室牛马完成签到 ,获得积分10
6分钟前
6分钟前
Akim应助亦风采纳,获得10
6分钟前
6分钟前
亦风发布了新的文献求助10
6分钟前
情怀应助刘紫媛采纳,获得10
6分钟前
科研通AI2S应助亦风采纳,获得10
6分钟前
亦风完成签到,获得积分10
6分钟前
7分钟前
偷得浮生半日闲完成签到 ,获得积分10
7分钟前
jintian完成签到 ,获得积分10
7分钟前
7分钟前
fufufu123完成签到 ,获得积分10
8分钟前
桐桐应助科研通管家采纳,获得10
8分钟前
puzhongjiMiQ完成签到,获得积分10
8分钟前
9分钟前
李健的粉丝团团长应助lzzz采纳,获得10
9分钟前
9分钟前
刘紫媛发布了新的文献求助10
9分钟前
Raul完成签到 ,获得积分10
10分钟前
lql完成签到 ,获得积分10
10分钟前
可爱的函函应助鲅鱼圈采纳,获得10
11分钟前
11分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
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 3990469
求助须知:如何正确求助?哪些是违规求助? 3532166
关于积分的说明 11256513
捐赠科研通 3271046
什么是DOI,文献DOI怎么找? 1805207
邀请新用户注册赠送积分活动 882302
科研通“疑难数据库(出版商)”最低求助积分说明 809234