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
浅浅完成签到,获得积分10
刚刚
量子星尘发布了新的文献求助10
5秒前
帅气的藏鸟完成签到,获得积分10
9秒前
加油完成签到 ,获得积分10
10秒前
健康的宛菡完成签到 ,获得积分10
11秒前
橙果果发布了新的文献求助20
11秒前
晚晚完成签到,获得积分10
12秒前
12秒前
听闻韬声依旧完成签到 ,获得积分10
12秒前
ZHZ完成签到,获得积分10
13秒前
啊哈啊哈额完成签到,获得积分10
13秒前
yyy完成签到,获得积分10
14秒前
14秒前
xiaoputaor完成签到 ,获得积分10
15秒前
Camus发布了新的文献求助10
15秒前
paper reader完成签到,获得积分10
15秒前
16秒前
八八九九九1完成签到,获得积分10
17秒前
tigger完成签到 ,获得积分10
18秒前
20秒前
22秒前
优雅的千雁完成签到,获得积分10
24秒前
2316690509完成签到 ,获得积分10
24秒前
没用的三轮完成签到,获得积分10
24秒前
fancy完成签到 ,获得积分10
24秒前
mayberichard完成签到,获得积分10
28秒前
LINDENG2004完成签到 ,获得积分10
34秒前
wz完成签到,获得积分10
35秒前
简奥斯汀完成签到 ,获得积分10
42秒前
五本笔记完成签到 ,获得积分10
42秒前
45秒前
花花发布了新的文献求助20
45秒前
asd113发布了新的文献求助10
49秒前
美满的小蘑菇完成签到 ,获得积分10
49秒前
自然白安完成签到 ,获得积分10
55秒前
量子星尘发布了新的文献求助10
58秒前
等待小鸽子完成签到 ,获得积分10
1分钟前
龙虾发票完成签到,获得积分10
1分钟前
小康学弟完成签到 ,获得积分10
1分钟前
了0完成签到 ,获得积分10
1分钟前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
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 4038066
求助须知:如何正确求助?哪些是违规求助? 3575779
关于积分的说明 11373801
捐赠科研通 3305584
什么是DOI,文献DOI怎么找? 1819239
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022