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Fractography and morphology of shear bands of a Zr-based bulk metallic glass zr基大块金属玻璃的断口形貌及剪切带形貌
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30057-2
Jun Tan , Jun-yan Gao , Xue-mei Qin , Zheng-rong Fu , Dong Li , Min Li , Xiu-chang Wang , Gang Wang
{"title":"Fractography and morphology of shear bands of a Zr-based bulk metallic glass","authors":"Jun Tan ,&nbsp;Jun-yan Gao ,&nbsp;Xue-mei Qin ,&nbsp;Zheng-rong Fu ,&nbsp;Dong Li ,&nbsp;Min Li ,&nbsp;Xiu-chang Wang ,&nbsp;Gang Wang","doi":"10.1016/S1006-706X(17)30057-2","DOIUrl":"10.1016/S1006-706X(17)30057-2","url":null,"abstract":"<div><p>Bulk metallic glasses (BMGs) have attracted considerable attention in the last few decades particularly triggered by their potential applications as novel structural and/or functional materials, owing to their superior strength, large elastic strain limit and relatively low Young's modulus etc. compared to their crystalline counterparts. Here, a 3D reconstruction application to the fractography and the morphology of shear bands was reported for a ductile Zr<sub>56</sub> Co<sub>28</sub> Al<sub>16</sub> (at. %) BMG through a Phenom series desktop scanning electron microscope. The results of the 3D reconstruction and the following contour analysis indicate a typical shear fracture mode for the investigated alloy. It is inferred that the fractography and the morphology of shear bands might be dependent on their composition, structure states, and loading conditions for BMGs.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 385-389"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30057-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72828630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Effect of pre-existing shear bands on mechanical properties and serration behaviors in bulk metallic glasses 预先剪切带对大块金属玻璃力学性能和锯齿化行为的影响
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30060-2
Xu-dong Yuan , Sheng-hai Wang , Kai-kai Song , Xiao-liang Han , Yu-sheng Qin , Dong-fang Li , Xue-lian Li , Bo Song , Hui Xing , Li Wang
{"title":"Effect of pre-existing shear bands on mechanical properties and serration behaviors in bulk metallic glasses","authors":"Xu-dong Yuan ,&nbsp;Sheng-hai Wang ,&nbsp;Kai-kai Song ,&nbsp;Xiao-liang Han ,&nbsp;Yu-sheng Qin ,&nbsp;Dong-fang Li ,&nbsp;Xue-lian Li ,&nbsp;Bo Song ,&nbsp;Hui Xing ,&nbsp;Li Wang","doi":"10.1016/S1006-706X(17)30060-2","DOIUrl":"10.1016/S1006-706X(17)30060-2","url":null,"abstract":"<div><p>Pre-existing (multiple) shear bands were introduced into the ductile Zr<sub>36</sub> Co<sub>28</sub> Al<sub>16</sub> and Zr<sub>65</sub> Ni<sub>16</sub> Cu<sub>15</sub> Al<sub>10</sub> bulk metallic glasses (BMGs) through the lateral-deformation, respectively. It was found that the pre-exiting shear bands can further enhance the compressive plasticity of ductile BMGs. According to the serration analysis on the plastic deformation of the as-cast and the pre-deformed samples, the serration events in the stress-strain curves during deformation display a self-organized critical (SOC) behavior. Compared with the as-cast BMGs, a larger power-law scaling exponent calculated based on serrated flow behaviors becomes larger for the pre-deformed BMGs, implying that the shear banding stability of BMGs is effectively enhanced. This should be caused by the pronounced interactions of shear bands during plastic deformation for the pre-deformed BMGs. However, by introducing a large amount of multiple shear bands into the glassy matrix, it also becomes easier for shear bands to propagate along the pre-existing shear bands, leading to a lower cut-off elastic energy density for the pre-deformed BMGs. More multiple shear bands with stronger interactions for the pre-deformed BMGs could provide a larger chance to activate the shear-band cracking but less local elastic energies are remained for the subsequent crack-linking.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 402-410"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30060-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91244404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Hot tearing susceptibility of Fe-20. 96Cr-2. 13Ni-0. 15N-4. 76Mn-0.01Mo duplex stainless steel Fe-20的热撕裂敏感性。96 cr-2。13 ni-0。15有能力。76Mn-0.01Mo双相不锈钢
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30063-8
Zhi-qiang Wei, Xiang-ru Chen, Hong-gang Zhong, Qi-jie Zhai, Gang Wang
{"title":"Hot tearing susceptibility of Fe-20. 96Cr-2. 13Ni-0. 15N-4. 76Mn-0.01Mo duplex stainless steel","authors":"Zhi-qiang Wei,&nbsp;Xiang-ru Chen,&nbsp;Hong-gang Zhong,&nbsp;Qi-jie Zhai,&nbsp;Gang Wang","doi":"10.1016/S1006-706X(17)30063-8","DOIUrl":"10.1016/S1006-706X(17)30063-8","url":null,"abstract":"<div><p>The hot tearing susceptibility of a Fe-20. 96Cr-2. 13Ni-0. 15N-4. 76Mn-0. 01 Mo duplex stainless steel was investigated using method of constrained solidification shrinkage in one dimension. An apparatus for real-time measuring the contraction stress and temperature during solidification was developed, which can achieve the in-situ observation of melting and solidification and avoid the large temperature gradient of casting under the condition of pouring. The results show that the contraction stress increases significantly when the core temperature of casting reaches the liquidus temperature. The contraction stress is released when the core temperature of casting reaches 1456 °C. At this temperature, the hot tearing susceptibility of duplex stainless steel is the largest. With decreasing the core temperature to 1363 °C, the slope of contraction stress increases, which is related to the ferrite-to-austenite transformation.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 421-425"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30063-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74444002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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: 6
Mass production of magnetocaloric LaFeMnSiB alloys with hydrogenation 氢化法量产磁热LaFeMnSiB合金
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30070-5
Tao Zhang , Cheng-yong Wang , Lugee Li , Yong Zhang , Cui-lan Liu
{"title":"Mass production of magnetocaloric LaFeMnSiB alloys with hydrogenation","authors":"Tao Zhang ,&nbsp;Cheng-yong Wang ,&nbsp;Lugee Li ,&nbsp;Yong Zhang ,&nbsp;Cui-lan Liu","doi":"10.1016/S1006-706X(17)30070-5","DOIUrl":"10.1016/S1006-706X(17)30070-5","url":null,"abstract":"<div><p>LaFen<sub>11.39</sub> Mn<sub>0.35</sub> Si<sub>1.26</sub> B<sub>0.1</sub> H<sub>x</sub> alloys were prepared by hydrogenation. Samples were annealed at 1343 K for 30−90 h to form the NaZn<sub>13</sub> phase. La-rich and α-Fe secondary phases were also detected. Saturated hydrogenation at 553 K and 0.15 MPa of H<sub>2</sub> pressure for 5 h was employed to improve the Curie temperature of the alloys to 279 K. The maximum magnetic entropy change, relative cooling power, and adiabatic temperature change of LaFe<sub>11.39</sub> Mn<sub>0.35</sub> Si<sub>1.26</sub> B<sub>0.1</sub> H<sub>x</sub> annealed at 1343 K for 90 h after hydrogen absorption are 6.38 J/(kg · K) (magnetic changes μ0 ΔH = 1.65 T), 100.1 J/kg (μ0 ΔH = 1.65 T), and 2.2 K (μ0 ΔH = 1.48 T), respectively. Although the maximum magnetic entropy change of the LaFe<sub>11.39</sub> Mn<sub>0.35</sub>-Si<sub>1.26</sub> B<sub>0.1</sub> H<sub>x</sub> alloys is lower than those of similar alloys with high purity raw materials, the relative cooling power is nearly the same. The effect of impurities of the raw materials used was also discussed. It is assumed that the impurity of 0.2 wt. % Al is responsible for the reduced entropy change of the resulted alloys. The LaFe<sub>11.39</sub> Mn<sub>0.35</sub> Si<sub>1.26</sub> B<sub>0.1</sub> H<sub>x</sub> alloys prepared by this method could be a low cost alternative material for room temperature magnetic cooling applications.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 462-468"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30070-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84947430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Extracting compressive stress-strain curve based on stick-slip shear banding process in bulk metallic glasses 基于黏滑剪切带化过程的大块金属玻璃压缩应力-应变曲线提取
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30055-9
Jing Hu , Yun-xuan Weng , Xiao-li Li , Bao-an Sun
{"title":"Extracting compressive stress-strain curve based on stick-slip shear banding process in bulk metallic glasses","authors":"Jing Hu ,&nbsp;Yun-xuan Weng ,&nbsp;Xiao-li Li ,&nbsp;Bao-an Sun","doi":"10.1016/S1006-706X(17)30055-9","DOIUrl":"10.1016/S1006-706X(17)30055-9","url":null,"abstract":"<div><p>Based on the stick-slip process, an effective method to extract the stress-strain curve directly from the crosshead displacement-load raw data in compression of bulk metallic glasses was proposed. The method was tested in two bulk metallic glass samples with different plasticities and shear band morphologies. The extracted stress-strain curves were found to well resemble the stress-strain curve measured by a laser extensometer. In addition, the extracted curve could resolve fine structures of serrated flow much better than that measured by extensometer, thus facilitating the study of shear banding process. Results obtained by this method made the stick-slip dynamics of shear banding valid, and this method could be employed to obtain the real strain of small-sized metallic glass samples where extensometer cannot be applied.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 372-377"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30055-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90719189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Al-Si additions on mechanical properties and corrosion resistance of Mg-8Li dual-phase alloys Al-Si添加量对Mg-8Li双相合金力学性能和耐蚀性的影响
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30064-X
Zi-long Zhao , Xue-gang Xing , Yi Luo , Yi-de Wang , Wei Liang
{"title":"Influence of Al-Si additions on mechanical properties and corrosion resistance of Mg-8Li dual-phase alloys","authors":"Zi-long Zhao ,&nbsp;Xue-gang Xing ,&nbsp;Yi Luo ,&nbsp;Yi-de Wang ,&nbsp;Wei Liang","doi":"10.1016/S1006-706X(17)30064-X","DOIUrl":"10.1016/S1006-706X(17)30064-X","url":null,"abstract":"<div><p>Sheet samples of Mg-8Li, Mg-8Li-3Al, Mg-8Li-3AlSi and Mg-8Li-5AlSi alloys were obtained by hot rolling. Optical microscope, microhardness tester, nanoindentor, X-ray diffractometer and electrochemical analyzer were adopted to investigate the microstructures, micro-mechanical properties and corrosion resistance. Roller was preheated to 150 °C before rolling process, and rolling reduction designed was about 20% per pass with a total rolling reduction of 84 %. The rolled plates were annealed at 200 °C for 120 min. The tensile tests were performed at room temperature. Experimental results showed that both the strength and corrosion resistance of the α + β dual-phase of Mg-Li alloy were significantly improved with adding Al-Si elements. The strength enhancement was attributed to the solid solution of Al into the α-Mg matrix and into the β-Li matrix as well as to the precipitation strengthening of Mg<sub>2</sub> Si particles. Besides, the dendrite grains of α-Mg transformed to equiaxed ones with addition of Al into alloy Mg-Li.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 426-429"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30064-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76547692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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: 6
High temperature deformation behavior and processing map of hot isostatically pressed Ti-47. 5Al-2Cr-2Nb-0. 2W-0. 2B alloy using gas atomization powders 热等静压Ti-47的高温变形行为及加工图。5 al-2cr-2nb-0。2 w 0。2B合金采用气体雾化粉末
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30066-3
Ying Bao , Dong-ye Yang , Na Liu , Guo-qing Zhang , Zhou Li , Fu-yang Cao , Jian-fei Sun
{"title":"High temperature deformation behavior and processing map of hot isostatically pressed Ti-47. 5Al-2Cr-2Nb-0. 2W-0. 2B alloy using gas atomization powders","authors":"Ying Bao ,&nbsp;Dong-ye Yang ,&nbsp;Na Liu ,&nbsp;Guo-qing Zhang ,&nbsp;Zhou Li ,&nbsp;Fu-yang Cao ,&nbsp;Jian-fei Sun","doi":"10.1016/S1006-706X(17)30066-3","DOIUrl":"10.1016/S1006-706X(17)30066-3","url":null,"abstract":"<div><p>The hot compressive deformation behavior of hot isostatically pressed Ti-47. 5Al-2Cr-2Nb-0. 2W-0. 2B alloy using gas atomization powders was systematically investigated and the processing map was obtained in the temperature range of 1323−1473 K and strain rate range of 0.001−0.5 s<sup>−1</sup> . The calculated activation energy in the above variational ranges of temperature and strain rate possesses a low activation energy value of approximately 365.6 kJ/mol based on the constitutive relationship models developed with the Arrhenius-type constitutive model respectively considering the strain rate and deformation temperature. The hot working flow behavior during the deformation process was analyzed combined with the microstructural evolution. Meanwhile, the processing maps during the deformation process were established based on the dynamic material model and Prasad instability criterion under different deformation conditions. Finally, the optimal hot processing window of this alloy corresponding to the wide temperature range of 1353−1453 K and the low strain rate of 0.001−0.1 s<sup>−1</sup> was obtained.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 435-441"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30066-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80866451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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: 6
Plasticity improvement of a Zr-based bulk metallic glass by micro-arc oxidation 通过微弧氧化改善 Zr 基块状金属玻璃的塑性
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30062-6
Yong-jiang Huang , Peng Xue , Xiang Cheng , Ya-ming Wang , Fu-yang Gao , Zhi-liang Ning , Jian-fei Sun
{"title":"Plasticity improvement of a Zr-based bulk metallic glass by micro-arc oxidation","authors":"Yong-jiang Huang ,&nbsp;Peng Xue ,&nbsp;Xiang Cheng ,&nbsp;Ya-ming Wang ,&nbsp;Fu-yang Gao ,&nbsp;Zhi-liang Ning ,&nbsp;Jian-fei Sun","doi":"10.1016/S1006-706X(17)30062-6","DOIUrl":"10.1016/S1006-706X(17)30062-6","url":null,"abstract":"<div><p>Mciro-are oxidation (MAO) was used to coat porous films on the surface of a Zr-based bulk metallic glass sample. The compressive test results indicated that, compared with the as-cast sample, the MAO treated one exhibited higher deformation capacity, associated with multiple shear bands with higher density on the side surface and well-developed vein patterns with smaller size on the fractured surface. The pore in the MAOed film and the matrix/coating interface initiated the shear bands and impeded the rapid propagation of shear bands, thus favoring the enhanced plasticity of the MAO treated sample. The obtained results demonstrated that MAO can be considered as an effective method to finely tune the mechanical performance of monolithic bulk metallic glasses.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 416-420"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30062-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75392291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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: 5
Effect of A122Si/ZL102 bimetal interface fabricated by extrusion at near-eutectic temperature 近共晶温度下挤压制备A122Si/ZL102双金属界面的影响
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30071-7
Jun-feng Zhao , Shan-guang Liu , Xiao-guang Yuan , Jian-fei Sun , Hong-jun Huang , Fu-yang Cao , Hong-xian Shen , Yu-long Wang
{"title":"Effect of A122Si/ZL102 bimetal interface fabricated by extrusion at near-eutectic temperature","authors":"Jun-feng Zhao ,&nbsp;Shan-guang Liu ,&nbsp;Xiao-guang Yuan ,&nbsp;Jian-fei Sun ,&nbsp;Hong-jun Huang ,&nbsp;Fu-yang Cao ,&nbsp;Hong-xian Shen ,&nbsp;Yu-long Wang","doi":"10.1016/S1006-706X(17)30071-7","DOIUrl":"10.1016/S1006-706X(17)30071-7","url":null,"abstract":"<div><p>The A122Si/ZL102 bimetal was designed and prepared by extrusion at near-eutectic temperature. The properties and fracture behaviors of different surface treatments between oxide film and zinc coating were compared between the A122Si and ZL102 bimetal. The average bonding strength of bimetal with intermittent oxide film interface was about 89. 3 MPa, which is higher than that of the bimetal fabricated by zinc coating method (about 76.3 MPa). During the process of extrusion, the oxidation film was extruded to crush and the metal was extruded through the micro-cracks of the oxidation film, then the two surfaces were joined together. Altogether, the results showed that extrusion at near-eutectic temperature is favorable for achieving a high-quality metallurgical bonded interface.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 469-474"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30071-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82368616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Plasticity performance of Al0.5CoCrCuFeNi high-entropy alloys under nanoindentation Al0.5CoCrCuFeNi高熵合金的纳米压痕塑性性能
2区 材料科学
Journal of Iron and Steel Research(International) Pub Date : 2017-04-01 DOI: 10.1016/S1006-706X(17)30058-4
Li-ping Yu , Shu-ying Chen , Jing-li Ren , Yang Ren , Fu-qian Yang , Karin A. Dahmen , Peter K. Liaw
{"title":"Plasticity performance of Al0.5CoCrCuFeNi high-entropy alloys under nanoindentation","authors":"Li-ping Yu ,&nbsp;Shu-ying Chen ,&nbsp;Jing-li Ren ,&nbsp;Yang Ren ,&nbsp;Fu-qian Yang ,&nbsp;Karin A. Dahmen ,&nbsp;Peter K. Liaw","doi":"10.1016/S1006-706X(17)30058-4","DOIUrl":"10.1016/S1006-706X(17)30058-4","url":null,"abstract":"<div><p>The statistical and dynamic behaviors of the displacement-load curves of a high-entropy alloy, Al<sub>0.5</sub> CoCrCuFeNi, were analyzed for the nanoindentation performed at two temperatures. Critical behavior of serrations at room temperature and chaotic flows at 200 °C were detected. These results are attributed to the interaction among a large number of slip bands. For the nanoindentation at room temperature, recurrent partial events between slip bands introduce a hierarchy of length scales, leading to a critical state. For the nanoindentation at 200 °C, there is no spatial interference between two slip bands, which is corresponding to the evolution of separated trajectory of chaotic behavior.</p></div>","PeriodicalId":64470,"journal":{"name":"Journal of Iron and Steel Research(International)","volume":"24 4","pages":"Pages 390-396"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1006-706X(17)30058-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84043955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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