Huijuan Zhang , Dongqun Xin , Xiangyun Zhang , Kun Wang , En Tang , Xia Pan , Chu Wu
{"title":"水浴冷却和超声波振动辅助 CMT 线弧定向能沉积镁合金微观结构和机械性能的比较研究","authors":"Huijuan Zhang , Dongqun Xin , Xiangyun Zhang , Kun Wang , En Tang , Xia Pan , Chu Wu","doi":"10.1016/j.matlet.2024.137741","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates the effects of water bath cooling and interlayer ultrasonic vibration on magnesium alloy (AZ31) components produced through cold metal transfer-based wire arc additive manufacturing (CMT-WAAM). The results showed that water bath cooling had little impact on refining grain size or improving mechanical properties compared to air cooling. In contrast, interlayer ultrasonic vibration treatment significantly refined grain size by 36.8 %, due to cavitation and acoustic streaming effects caused by ultrasonic vibrations. Ultrasonic vibration-treated specimens exhibited enhanced mechanical properties, with yield strength of ∼73 MPa, ultimate tensile strength of ∼220 MPa, and elongation of ∼20 %. The improved strength-ductility synergy was attributed to refinement of grain size and uniform distribution of fine precipitates induced by ultrasonic vibration treatment. These finding suggests that interlayer ultrasonic vibration treatment is an effective method for enhancing the mechanical properties of CMT WAAM-prepared magnesium alloys.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"380 ","pages":"Article 137741"},"PeriodicalIF":2.7000,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparative study on microstructure and mechanical properties of CMT wire-arc directed energy deposited magnesium alloy assisted by water bath cooling and ultrasonic vibration\",\"authors\":\"Huijuan Zhang , Dongqun Xin , Xiangyun Zhang , Kun Wang , En Tang , Xia Pan , Chu Wu\",\"doi\":\"10.1016/j.matlet.2024.137741\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study investigates the effects of water bath cooling and interlayer ultrasonic vibration on magnesium alloy (AZ31) components produced through cold metal transfer-based wire arc additive manufacturing (CMT-WAAM). The results showed that water bath cooling had little impact on refining grain size or improving mechanical properties compared to air cooling. In contrast, interlayer ultrasonic vibration treatment significantly refined grain size by 36.8 %, due to cavitation and acoustic streaming effects caused by ultrasonic vibrations. Ultrasonic vibration-treated specimens exhibited enhanced mechanical properties, with yield strength of ∼73 MPa, ultimate tensile strength of ∼220 MPa, and elongation of ∼20 %. The improved strength-ductility synergy was attributed to refinement of grain size and uniform distribution of fine precipitates induced by ultrasonic vibration treatment. These finding suggests that interlayer ultrasonic vibration treatment is an effective method for enhancing the mechanical properties of CMT WAAM-prepared magnesium alloys.</div></div>\",\"PeriodicalId\":384,\"journal\":{\"name\":\"Materials Letters\",\"volume\":\"380 \",\"pages\":\"Article 137741\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167577X24018810\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X24018810","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Comparative study on microstructure and mechanical properties of CMT wire-arc directed energy deposited magnesium alloy assisted by water bath cooling and ultrasonic vibration
This study investigates the effects of water bath cooling and interlayer ultrasonic vibration on magnesium alloy (AZ31) components produced through cold metal transfer-based wire arc additive manufacturing (CMT-WAAM). The results showed that water bath cooling had little impact on refining grain size or improving mechanical properties compared to air cooling. In contrast, interlayer ultrasonic vibration treatment significantly refined grain size by 36.8 %, due to cavitation and acoustic streaming effects caused by ultrasonic vibrations. Ultrasonic vibration-treated specimens exhibited enhanced mechanical properties, with yield strength of ∼73 MPa, ultimate tensile strength of ∼220 MPa, and elongation of ∼20 %. The improved strength-ductility synergy was attributed to refinement of grain size and uniform distribution of fine precipitates induced by ultrasonic vibration treatment. These finding suggests that interlayer ultrasonic vibration treatment is an effective method for enhancing the mechanical properties of CMT WAAM-prepared magnesium alloys.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive