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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
Influence of different binder metals in high entropy carbide based hardmetals 不同粘结剂对高熵碳化物基硬质合金的影响
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-21 DOI: 10.1080/00325899.2022.2076311
J. Pötschke, A. Vornberger, T. Gestrich, L. Berger, A. Michaelis
{"title":"Influence of different binder metals in high entropy carbide based hardmetals","authors":"J. Pötschke, A. Vornberger, T. Gestrich, L. Berger, A. Michaelis","doi":"10.1080/00325899.2022.2076311","DOIUrl":"https://doi.org/10.1080/00325899.2022.2076311","url":null,"abstract":"ABSTRACT\u0000 High-entropy carbides (HEC) are a class of promising new hard phases for a sustainable improvement of hardmetal properties. In this work, hardmetals of the HEC (Ta,Nb,Ti,V,W)C were studied with two typical binder volume fractions of 16 and 24 vol-% consisting of Co, Ni and FeNi. The sintering behaviour, microstructure, phase composition, magnetic and mechanical properties are discussed and are compared to a conventional WC-Co hardmetal. It was shown that the HEC has a high-phase stability and that dense hardmetals with promising mechanical properties were obtained.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"65 1","pages":"373 - 381"},"PeriodicalIF":1.4,"publicationDate":"2022-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44134055","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: 8
Preparation and characterisation of nickel-based brazing powder: cobalt and chromium addition effects 镍基钎焊粉末的制备和表征：钴和铬的添加效应
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-12 DOI: 10.1080/00325899.2022.2073013
E. Hosseini, M. Amirjan, N. Parvin
{"title":"Preparation and characterisation of nickel-based brazing powder: cobalt and chromium addition effects","authors":"E. Hosseini, M. Amirjan, N. Parvin","doi":"10.1080/00325899.2022.2073013","DOIUrl":"https://doi.org/10.1080/00325899.2022.2073013","url":null,"abstract":"ABSTRACT In the present work, three novel brazing powders were produced, in addition to a commercial composition, by the mechanical alloying (MA) method. Cobalt and chromium’s effects on the properties of brazing powder and related joints were investigated. The results showed that; with the addition of cobalt, the powder morphology went to a rounded and near-spherical shape after 15 milling hours, and the solidus significantly raised. Also, chromium shifted the melting range to higher temperatures. The powder with 6% cobalt and 14% chromium had more than 100°C higher solidus and a melting range of 20°C than the commercial BNi-2, ideal for working temperature of more than 1000°C. The shear strength results revealed that the addition of chromium and cobalt significantly promotes joint strength owing to the activation of the solid solution strengthening mechanism. Therefore, the novel synthesized brazing powders can be an excellent candidate for high temperature and corrosive operating environments.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"64 - 76"},"PeriodicalIF":1.4,"publicationDate":"2022-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45871262","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 control of Additively manufactured IN718 By L-PBF process L-PBF法添加IN718的微观结构控制
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-11 DOI: 10.1080/00325899.2022.2069540
L. Lacoste, A. Sakly, S. Dépinoy, S. Lebel, B. Vayre, C. Colin
{"title":"Microstructure control of Additively manufactured IN718 By L-PBF process","authors":"L. Lacoste, A. Sakly, S. Dépinoy, S. Lebel, B. Vayre, C. Colin","doi":"10.1080/00325899.2022.2069540","DOIUrl":"https://doi.org/10.1080/00325899.2022.2069540","url":null,"abstract":"ABSTRACT Additively manufactured (AM) parts generally exhibit large columnar grains and a preferential crystallographic texture. While this microstructure may have beneficial effects, for instance on creep properties, the resulting mechanical anisotropy remains a key issue for most critical in-service applications. The relationship between the solidification conditions and the melt pool morphology of the Inconel 718 fabricated by laser powder bed fusion (L-PBF) was investigated to adapt the microstructural characteristics of the parts to their intended applications. By optimising the length of the scanned vectors, it is possible to reduce both the texture index and the grain size by a factor 2 based on EBSD analyses. In addition, the aspect ratio and the grain density can be increased by a factor 1.1 and 2.2, respectively, compared to a conventional L-PBF scanning strategy. These achievements pave the way for the production of fully isotropic parts and/or anisotropic parts controlled by the L-PBF process.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"65 1","pages":"365 - 372"},"PeriodicalIF":1.4,"publicationDate":"2022-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43284148","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
Influence of defects on damage tolerance of Metal-Injection-Molded β titanium alloys under static and dynamic loading 缺陷对金属注射成型β钛合金静态和动态损伤容限的影响
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-06 DOI: 10.1080/00325899.2022.2069077
P. Xu, T. Ebel, F. Pyczak, R. Willumeit-Römer, Sen Yu
{"title":"Influence of defects on damage tolerance of Metal-Injection-Molded β titanium alloys under static and dynamic loading","authors":"P. Xu, T. Ebel, F. Pyczak, R. Willumeit-Römer, Sen Yu","doi":"10.1080/00325899.2022.2069077","DOIUrl":"https://doi.org/10.1080/00325899.2022.2069077","url":null,"abstract":"ABSTRACT The β titanium alloys are key materials in lightweight and biomedical applications, due to the combination of excellent biocompatibility and mechanical properties. However, the Binder-based Powder Technologies such as Metal-Injection-Molding (MIM), Binder-Jetting and Fused-Filament-Fabrication, normally introduce three major processing-related defects in the as-sintered Ti-parts: (i) residual porosity, (ii) high impurity level and (iii) coarse-grained structure. The previous studies revealed that these processing defects invariably tend to be even more severe in β titanium alloys than in α/β Ti-6Al-4V alloy, all fabricated by powder metallurgical route. In this work, these processing defects and their likely origins in MIM β titanium alloys are analysed. Furthermore, the influence of these defects on damage tolerance and fracture mechanisms of MIM β titanium alloys under either static or dynamic loading is investigated. Based on the studies, strategic technical improvements in the processing to improve the reliability of MIM β titanium alloys products are proposed.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"65 1","pages":"354 - 364"},"PeriodicalIF":1.4,"publicationDate":"2022-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47683440","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
Friction and wear of cobalt–chromium–nickel–copper alloy in contact with tungsten-carbide-sintered balls 钴铬镍铜合金与碳化钨烧结球接触时的摩擦磨损
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-05-04 DOI: 10.1080/00325899.2022.2071194
Binghua Wu, Jie Wei, Jin-rong Wu, Mao-li Wang
{"title":"Friction and wear of cobalt–chromium–nickel–copper alloy in contact with tungsten-carbide-sintered balls","authors":"Binghua Wu, Jie Wei, Jin-rong Wu, Mao-li Wang","doi":"10.1080/00325899.2022.2071194","DOIUrl":"https://doi.org/10.1080/00325899.2022.2071194","url":null,"abstract":"ABSTRACT This paper describes a study of the influence of elemental nickel (Ni) and copper (Cu) elements on the tribological behaviour of a CoCr-based alloy. The tribology of CoCr-based alloys was examined by using a Bruker UMT-TriboLab machine with normal loads of 200 N, a frequency of 3 Hz, and a duration of 10 min. The Co70Cr20Ni5Cu5 alloy with 5wt-% Ni and 5wt-% Cu content showed the best wear property compared with other alloys, with a minimum friction coefficient of 0.147. The large improvement in wear resistance is related to the strongly inhibiting effect of crack initiation and growth in the worn surface, which reduces delamination wear. Because of the Co0.52Cu0.48 plastic deformation layer, hard phases like NiCoCr and CrCo can slip easily on the sliding interface and embed into the matrix, which may decrease delamination wear and reduce the crack growth rate.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"77 - 83"},"PeriodicalIF":1.4,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43053449","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
Characterisation of the mechanisms taking place during liquid phase sintering of PM boron steels with the help of artificial intelligence 利用人工智能技术表征PM硼钢液相烧结过程的机理
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-03-25 DOI: 10.1080/00325899.2022.2055888
Simon Gélinas, C. Blais
{"title":"Characterisation of the mechanisms taking place during liquid phase sintering of PM boron steels with the help of artificial intelligence","authors":"Simon Gélinas, C. Blais","doi":"10.1080/00325899.2022.2055888","DOIUrl":"https://doi.org/10.1080/00325899.2022.2055888","url":null,"abstract":"ABSTRACT Liquid phase sintering (LPS) of powder metallurgy (PM) components is a well-recognised strategy to enhance the densification of pressed-and-sintered compacts. This work reports the investigation on the liquid phase formation when a Fe–Ni–Mn–C–B master alloy (MA) is used as a boron carrier in combination with two iron base powders pre-alloyed with Mo. Through differential scanning calorimetry tests, quantitation of the microstructure with the help of artificial intelligence, as well as measurement of sintered density and strength as a function of sintering temperature, it was possible to unravel the mechanisms that take place before and during LPS. It was confirmed that a cascade of events takes place in the solid state prior to reaching the temperature necessary for a eutectic reaction to form a liquid. Additionally, the pre-alloyed Mo content was identified as a factor that modifies the initiation of LPS but not the LPS mechanisms per se.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"66 1","pages":"29 - 42"},"PeriodicalIF":1.4,"publicationDate":"2022-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45063683","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
Novel testing device and routine to characterise the spreadability of powders for powder bed fusion processes – a problem-oriented approach 表征粉末床熔融过程中粉末铺展性的新型测试设备和程序——一种面向问题的方法
IF 1.4 4区 材料科学
Powder Metallurgy Pub Date : 2022-02-23 DOI: 10.1080/00325899.2021.2023414
Marco Mitterlehner, H. Danninger, C. Gierl-Mayer, J. Frank, W. Tomischko, Harald Gschiel
{"title":"Novel testing device and routine to characterise the spreadability of powders for powder bed fusion processes – a problem-oriented approach","authors":"Marco Mitterlehner, H. Danninger, C. Gierl-Mayer, J. Frank, W. Tomischko, Harald Gschiel","doi":"10.1080/00325899.2021.2023414","DOIUrl":"https://doi.org/10.1080/00325899.2021.2023414","url":null,"abstract":"ABSTRACT Currently there is considerable interest in understanding and quantifying the powder characteristics that affect the quality of the top spread powder layer for processes such as powder bed fusion and binder jetting. For this purpose, a new testing device has been developed in order to assess several aspects of this top spread powder layer. Using different measurement procedures, the roughness of the top layer, the surface coverage of a single spread powder layer and the powder bed density of an entire spreading experiment can be determined. Since the tester is freely programmable, the individual process steps of spreading a single powder layer can also be varied. Using these methods, the influence of different process parameters such as e.g. the spreading velocity or the distance between the blade and the building platform, which is also referred to as gap size in general, on the quality of the top or only a single spread layer and on the powder bed packing density can be examined. This study presents the new test device as well as the corresponding measurement procedures mentioned, the reproducibility of the results, which, depending on the measurement method and the measured parameter, range between 0.24 and 4.81%, and the influence of the spreading strategy, which defines the chronological order of the single steps during spreading.","PeriodicalId":20392,"journal":{"name":"Powder Metallurgy","volume":"65 1","pages":"318 - 334"},"PeriodicalIF":1.4,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42601200","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: 4
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