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Study of mechanical and tribological properties of Ti–6Al–4V alloy fabricated by powder bed fusion laser beam 粉末床熔融激光束制备Ti–6Al–4V合金的力学和摩擦学性能研究
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-08-30 DOI: 10.1080/00325899.2022.2116405
Xiaojie Shi, Peipei Lu, Xiu Ye, Shuai Ren, Yiyao Wang, Zi-hua Xie, Yiqing Ma, Xiaojin Miao, Meiping Wu
{"title":"Study of mechanical and tribological properties of Ti–6Al–4V alloy fabricated by powder bed fusion laser beam","authors":"Xiaojie Shi, Peipei Lu, Xiu Ye, Shuai Ren, Yiyao Wang, Zi-hua Xie, Yiqing Ma, Xiaojin Miao, Meiping Wu","doi":"10.1080/00325899.2022.2116405","DOIUrl":"https://doi.org/10.1080/00325899.2022.2116405","url":null,"abstract":"ABSTRACT Powder bed fusion laser beam, as one of the most promising forming technologies, offers unmatched benefits over traditional processing, particularly in the production of Ti–6Al–4V. The influence of laser line energy density (LLED) on the forming surface, phase composition, micro-hardness, tensile characteristics and wear resistance of Ti–6Al–4V alloy were explored to disclose the evolution of mechanical and tribological properties. According to the findings, the LLED causes ‘depressions’ and ‘highlands’ between nearby scanning tracks. The phase composition did not alter appreciably as LLED increased. Micro-hardness and tensile characteristics increased initially, then declined, and the value of maximum micro-hardness and ultimate tensile strength were 388.17 HV0.2 and 1197.5 MPa, respectively. Furthermore, when the LLED is 0.24 J mm–1, the wear resistance is optimal under the aviation lubricant medium, with an average friction coefficient of 0.1505 and volume wear rate of 6.95∗10−8 mm2∗N−1, and a wear mechanism of mild furrow wear and adhesion wear.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"116 - 128"},"PeriodicalIF":1.4,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49281926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effect of reuse times on H13 powder properties processed by selective electron beam melting 重复使用次数对选择性电子束熔炼H13粉末性能的影响
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-08-25 DOI: 10.1080/00325899.2022.2115758
Xin Yang, Chenhao Sun, Fenghui Wang, Yang-lan Lai, S. Liu, Yingkang Wei, J. Yang, Hui-ping Tang
{"title":"Effect of reuse times on H13 powder properties processed by selective electron beam melting","authors":"Xin Yang, Chenhao Sun, Fenghui Wang, Yang-lan Lai, S. Liu, Yingkang Wei, J. Yang, Hui-ping Tang","doi":"10.1080/00325899.2022.2115758","DOIUrl":"https://doi.org/10.1080/00325899.2022.2115758","url":null,"abstract":"ABSTRACT The inconsistency of high material cost and powder properties are the primary barriers to widespread adoption of metal additive manufacturing. Obviously, powder reuse without affecting the properties of the parts can reduce the cost burden. In this study, the properties of H13 (4Cr5MoSiV1) powder were evaluated 16 build cycles in selective electron beam melting. Results show that the crystal plane spacing and particle size of the powder increased with reuse. With the increase i reuse times, more irregular particles appeared and the flowability decreased. The oxygen and nitrogen content of powder gradually increases from 149 to 250 ppm and 237 ppm to 394 ppm, respectively, with reuse. The simulation results show that the wider particle size distribution, the better the relative packing performance of the powder layer. Powder reuse has no negative effect on the hardness of the as-built samples.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"107 - 115"},"PeriodicalIF":1.4,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46089485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Investigation of mechanical properties and microstructure of Ti-15% Mo alloy produced by mechanical alloying and sintering with SPS (MA-SPS) SPS（MA-SPS）烧结Ti-15%Mo合金的力学性能和微观组织研究
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-07-22 DOI: 10.1080/00325899.2022.2102839
Mahdi Mirzaaghaei, F. Qods, H. Arabi, M. Milani, B. Mohammad Sadeghi, M. Nourbakhsh
{"title":"Investigation of mechanical properties and microstructure of Ti-15% Mo alloy produced by mechanical alloying and sintering with SPS (MA-SPS)","authors":"Mahdi Mirzaaghaei, F. Qods, H. Arabi, M. Milani, B. Mohammad Sadeghi, M. Nourbakhsh","doi":"10.1080/00325899.2022.2102839","DOIUrl":"https://doi.org/10.1080/00325899.2022.2102839","url":null,"abstract":"ABSTRACT The goal of this study was to investigate the mechanical properties and microstructure of Ti-15% Mo alloy fabricated using the mechanical alloying and spark plasma sintering (MA-SPS) method. Accordingly, Ti and Mo powders were milled for different times, including 5, 15, 25, 35, and 45 h, and the SPS technique for sintering under a pressure of 25 MPa at 1100°C was used. The X-ray diffraction (XRD) analysis, optical and electron microscopy (SEM), hardness measurements, and compression testing were used to study the phases formed, the morphology of powders, microstructure, and mechanical properties of the as-prepared samples, respectively. The results revealed that owing to increasing the mechanical milling time, the percentage of the beta phase formed was higher, and in addition, it influenced the microstructure and mechanical properties of the samples fabricated after the sintering process. GRAPHICAL ABSTRACT","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"139 - 150"},"PeriodicalIF":1.4,"publicationDate":"2022-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42151702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Binder-jetting of TiCN-based cermets TiCN基金属陶瓷的粘结剂喷射
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-07-19 DOI: 10.1080/00325899.2022.2099636
Christian Berger, J. Pötschke, M. Fries, T. Moritz, A. Michaelis
{"title":"Binder-jetting of TiCN-based cermets","authors":"Christian Berger, J. Pötschke, M. Fries, T. Moritz, A. Michaelis","doi":"10.1080/00325899.2022.2099636","DOIUrl":"https://doi.org/10.1080/00325899.2022.2099636","url":null,"abstract":"ABSTRACT Additive Manufacturing is experiencing an upswing in many sectors of industry for a broad variety of materials. Processes are mainly developed for polymers and metals. For ceramics, hardmetals and especially cermets there are only a few additive processes suitable. The powder-based technique Binder-Jetting is one of these suitable processes with high productivity and relatively low green density. Within this study, TiCN-based cermets are printed by Binder-Jetting for the first time. The complexity of influences of the morphology and composition of cermet powders are discussed in regard to bulk density and material properties of printed and sintered parts. Studied TiCN-based cermet compositions represent different Ni and Mo2C contents. Main points of this investigation are further the adjustment of ratio of the raw materials for good sintering behaviour and their influence on the microstructures and as a function of varied sintering temperatures.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"65 1","pages":"382 - 389"},"PeriodicalIF":1.4,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48883365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Crack initiation and early propagation in case hardened sintered PM steels under cyclic load 循环载荷作用下表面硬化烧结PM钢的裂纹萌生和早期扩展
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-07-12 DOI: 10.1080/00325899.2022.2096194
A. Holmberg, U. Wiklund, P. Isaksson, Å. Kassman Rudolphi
{"title":"Crack initiation and early propagation in case hardened sintered PM steels under cyclic load","authors":"A. Holmberg, U. Wiklund, P. Isaksson, Å. Kassman Rudolphi","doi":"10.1080/00325899.2022.2096194","DOIUrl":"https://doi.org/10.1080/00325899.2022.2096194","url":null,"abstract":"ABSTRACT In the present study, crack propagation through the case hardened region of two different PM steels manufactured with different powder size distributions and sintered at different temperatures has been investigated. EBSD was used to study the microstructure before and after case hardening, revealing the relationship between powder particle grains after sintering and prior austenite grains after case hardening. A novel approach was used to achieve short cracks (10–20 µm) with high repeatability. The cracks were then analysed using EBSD and SEM, revealing detailed and novel information about the crack propagation route in the materials. Both tested materials show the same crack propagation behaviour. If a prior grain/prior austenite boundary is present within an angle from the crack initiation site, the cracks will follow the boundary and thus propagate intergranular, suggesting that the preferred route of crack propagation in case hardened sintered steel is along these boundaries.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"164 - 175"},"PeriodicalIF":1.4,"publicationDate":"2022-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41597611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research priorities for the surgical care of patients taking opioids preoperatively. 术前服用阿片类药物患者的手术护理研究重点。
4区 材料科学
Powder Metallurgy Pub Date : 2022-06-17 DOI: 10.1136/rapm-2022-103584
Jayson S Marwaha, Brendin R Beaulieu-Jones, Chris J Kennedy, Mark C Bicket, Gabriel A Brat
{"title":"Research priorities for the surgical care of patients taking opioids preoperatively.","authors":"Jayson S Marwaha, Brendin R Beaulieu-Jones, Chris J Kennedy, Mark C Bicket, Gabriel A Brat","doi":"10.1136/rapm-2022-103584","DOIUrl":"10.1136/rapm-2022-103584","url":null,"abstract":"","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91048708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO2 particle as a thermal stabiliser 通过分散ZrO2颗粒作为热稳定剂在注射成型17-4PH不锈钢的超高温烧结过程中抑制生长
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-31 DOI: 10.1080/00325899.2022.2069076
Masoud Moradjoy, H. Khorsand
{"title":"Growth inhibiting during ultra-high temperature sintering of injection moulded 17-4 PH stainless steel through the dispersion of ZrO2 particle as a thermal stabiliser","authors":"Masoud Moradjoy, H. Khorsand","doi":"10.1080/00325899.2022.2069076","DOIUrl":"https://doi.org/10.1080/00325899.2022.2069076","url":null,"abstract":"ABSTRACT The present work deals with the metal injection moulding and ultra-high temperature sintering of 17-4 PH powder. Purposefully, 5 mass% ZrO2 particles were dispersed by applying high shear stress during feedstock preparation. Uniformly distributed particles effectively hindered the powder boundary migration and limited their growth during ultra-high sintering temperatures. The achieved thermal stability provided a proper condition for reducing the final porosity to 3% and significantly improved the ultimate strength to 1070 MPa after sintering at 1380°C. Also, the ZrO2 particles acted as facilitators of sliding between solid powders and substantially reduced the required pressure for injecting to 700 Bar. Through introducing such a new approach in the field of powder injection moulding by ZrO2 particles, the amount of anisotropic shrinkage was reduced to 2%.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"20 - 28"},"PeriodicalIF":1.4,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43429300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance improvement and microstructure evolution of powder metallurgy high silicon steel with phosphorus addition 添加磷对粉末冶金高硅钢性能的改善及组织演变
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-26 DOI: 10.1080/00325899.2022.2080156
Q. Qin, Fang Yang, Cun-guang Chen, Junjie Hao, Zhimeng Guo
{"title":"Performance improvement and microstructure evolution of powder metallurgy high silicon steel with phosphorus addition","authors":"Q. Qin, Fang Yang, Cun-guang Chen, Junjie Hao, Zhimeng Guo","doi":"10.1080/00325899.2022.2080156","DOIUrl":"https://doi.org/10.1080/00325899.2022.2080156","url":null,"abstract":"ABSTRACT In this study, phosphorus-containing Fe-5 wt.% Si silicon steel sheet was prepared by powder loose sintering followed by hot rolling. Defect-free sheet with high P content was achieved. The study found that P effects on sintering promotion and processing deterioration were significantly suppressed by the presence of Si in steel. Appropriate P content would significantly improve the mechanical and magnetic properties of the sample. Under a comprehensive consideration, P content of 0.3-0.5 wt.% was suitable for silicon steel. Compared with P-free silicon steel, with 0.3 wt.% P addition, the tensile strength of silicon steel increased from 521 MPa to 680 MPa. As to the magnetic performance, the sample with 0.5 wt.% P had B8 of 1370.5 mT, and W10/50 0f 1.16 W·kg−1, while those for P-free sample were 1332.3 mT, and 1.46 W·kg−1, respectively. FeP phase with special morphology would be precipitated in samples with P addition.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"43 - 53"},"PeriodicalIF":1.4,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48504069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In situ TEM observation of the microstructure characteristics of the vacuum sintering, sub-zero and heat treatments of Vanadis 23 high-speed steel by adding Cr3C2–TaC–TiC powders 添加Cr3C2–TaC–TiC粉末对钒23高速钢真空烧结、亚零度和热处理组织特征的原位TEM观察
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-26 DOI: 10.1080/00325899.2022.2080157
Shih-Hsien Chang, C. Chang, K. Huang
{"title":"In situ TEM observation of the microstructure characteristics of the vacuum sintering, sub-zero and heat treatments of Vanadis 23 high-speed steel by adding Cr3C2–TaC–TiC powders","authors":"Shih-Hsien Chang, C. Chang, K. Huang","doi":"10.1080/00325899.2022.2080157","DOIUrl":"https://doi.org/10.1080/00325899.2022.2080157","url":null,"abstract":"ABSTRACT This research added different ratios of chromium carbides, tantalum carbide, and titanium carbide powders to Vanadis 23 high-speed steel powders. The composite powders utilised vacuum sintering at 1230, 1245, 1260, and 1275°C for 1 h, respectively, and the experimental results show that good mechanical properties were obtained by the addition of 0.6 mass% Cr3C2–0.2 mass% TaC–0.2 mass% TiC sintered at 1245°C for 1 h. Meanwhile, the apparent porosity was decreased to 0.23%, and the transverse rupture strength and hardness reached 2470.7 MPa and 78.5 HRA, respectively. When optimally sintered Vanadis 23 composites (0.2 T) underwent a series of heat treatments, the transverse rupture strength and hardness values were obviously enhanced to 2693.6 MPa and 84.0 HRA after quenching, and sub-zero and tempering treatments. The EBSD and TEM results confirm that the MC, M 6C, M 7C3, and M 23C6-type carbides appeared in the 0.2 T specimen after vacuum sintering and sub-zero heat treatments.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"151 - 163"},"PeriodicalIF":1.4,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48540164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Microstructure, mechanical and wear property correlation of Al bronze alloys 铝青铜合金的显微组织、力学性能和磨损性能的相关性
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-23 DOI: 10.1080/00325899.2022.2079183
Mahammad Ali Shaik, Brahma Raju Golla
{"title":"Microstructure, mechanical and wear property correlation of Al bronze alloys","authors":"Mahammad Ali Shaik, Brahma Raju Golla","doi":"10.1080/00325899.2022.2079183","DOIUrl":"https://doi.org/10.1080/00325899.2022.2079183","url":null,"abstract":"ABSTRACT In the present work, the effect of Al content (0, 3, 5, 10, 15 wt-%) on the microstructure, mechanical and wear properties of Cu was systematically studied. Interestingly, the core–shell microstructure was observed in the Cu–Al alloys or Al bronzes with different layers of α-Cu, and intermetallic phases. The Cu–Al alloys displayed good compressive yield strength of 174–653 MPa, in particular, the Cu samples with Al (upto 10 wt-%) did not show fracture upto strain of 40%. Abrasion wear was the predominant wear mechanism in pure Cu and Cu–Al alloys after sliding against SiC. The Al addition to Cu drastically decreased the wear rate (198 ×10−3 to 3.8 ×10−3 mm3 N–1m–1) of Cu–Al alloys. The present work demonstrates the advantage of the addition of (5–10 wt-%) Al to Cu in achieving good combination of mechanical and wear properties of Cu–Al alloys.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"54 - 63"},"PeriodicalIF":1.4,"publicationDate":"2022-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47765333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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