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Article
Glass transition and crystallization of Ce68Al10Cu20Co2 bulk metallic glass studied by Flash DSC
In this study, glass transition and crystallization of Ce68Al10Cu20Co2 bulk metallic glass at heating rates ranging from 0.083 to 14,000 K/s, covering six orders of magnitude, are investigated. For the glass tran...
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Article
Residual Stress Induced by Phase Transformation and its Role in the Delayed Cracking Performance of 22MnB5 Hot Roll Bending Pipes
Residual stress plays an important role in the delayed cracking performance of the 22MnB5 hot roll bending pipe. In the present study, the residual stress distribution of the 22MnB5 hot roll bending pipes with...
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Chapter and Conference Paper
Nucleation of One Single Sn Droplet on Al Thin Film Explored by Nanocalorimetry
In order to investigate the process of micro-nano scale droplet in non-equilibrium state, it is necessary to obtain the thermodynamic parameters of rapid phase transition during the solidification process. I...
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Chapter and Conference Paper
Effect of the Welding Current on the Liquid Metal Embrittlement in the Resistance Spot Welded Galvanized DP1180 Advanced High Strength Steel
DP1180 (AHSS) used in automobiles is usually protected from by the Zn-based . However, (LME) tends to occur in galvanized DP1180 during the (RSW) . This kind of is potentially harmful to the load...
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Chapter and Conference Paper
Preparation of Cu Powders with Electrical Explosion of Wires and Their Size-Dependent Mechanical Properties
In this paper, spherical and regular without satellite spheres were prepared by the method. Based on the Newton cooling law, the dependence of the on powder size was obtained, showing that the reduced ...
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Chapter and Conference Paper
Effect of Hydrogen Concentration and Residual Stress on the Delayed Cracking Performance of the 22MnB5 Hot Roll Bending Pipe
The and performance of the 22MnB5 pipe was analyzed in this study. The main of the surface and central zones of the pipe were martensite and ferrite before and after annealing. The test indicated tha...
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Article
Exceptional Cross-Tension Property in Resistance Spot Welded 7Mn Steels by Combining Cyclic Heat Treatment and Intercritical Annealing
Among the 3rd generation advanced high strength steels, medium Mn steels receive extensive attention sed in modern automotive industry attributing to their encouraging mechanical performance and lower producti...
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Chapter and Conference Paper
Investigation on the Delayed Cracking Performance of the 22MnB5 Hot Roll Bending Pipe
22MnB5 steel possesses a promising application in the structural components in automobile industry mainly attributing to its low cost combined with the high . The behavior of the 22MnB5 steel in the solutio...
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Chapter and Conference Paper
Study on the Microstructure and Mechanical Properties of Aluminum Alloy 5754 to Advanced High Strength Steel by the Laser Welding-Brazing Technique
of aluminum alloy 5754 and galvanized advanced high strength steel (AHSS) are prepared by technique. The microstructure in each characteristic zones of aluminum alloy is observed. The α-Al is the main mic...
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Article
Role of Si Content in the Element Segregation of Galvanized QP980 Advanced High Strength Steel
Advanced high strength steel (AHSS) with Zn coating shows an abnormal liquid metal embrittlement (LME) during the assembly welding, limiting its application in the automotive industry. The element content of A...
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Chapter and Conference Paper
Effect of Welding Current on Liquid Metal Embrittlement of the Resistance Spot Welded Galvanized QP980 Advanced High-Strength Steel
used in automobile is usually protected from corrosion by Zn-based coating. (LME) is tended to occur in galvanized QP980 steel during process and therefore leads to the reduction of load-carrying property...
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Chapter and Conference Paper
Dissolution of Carbides in HAZ During NG-TIG Welding for Alloy 617/9%Cr Dissimilar Welded Joint
The carbide evolution plays a significant effect on the mechanical property of welded joint. The microstructure in each characteristic zone and the carbide evolution of Alloy are analyzed. The austenitic gra...
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Chapter and Conference Paper
Cooling Rate and Roughness Dependence of the Undercooling for One Single Sn Droplet with Si Thin Film Substrate by Nanocalorimetry
has been developed and used to study the nucleation behavior of one single metallic droplet, especially the . For heterogeneous and are deemed as significant factors to affect the . In this paper, the r...
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Chapter and Conference Paper
Role of the Aging Treatment in the Microstructure Evolution and Mechanical Properties of Cu/Sn-Bi-Ag-In/Cu Joint
solder joints with sandwich structure were prepared by reflow soldering, and the microstructure evolution of the solder joints by aging at 80 ℃ for 0, 100, 200, 300, 400 and 500 h was systematically investiga...
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Article
Effect of Post-weld Heat Treatment on the Cross Tensile Strength of Resistance Spot-Welded Medium Manganese Steel
The influence of the post-weld heat treatment (PWHT) on the cross tensile strength (CTS) of the resistance spot-welded medium manganese steel (MMS, 7Mn steel) is investigated in the present study. The results ...
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Article
Enhanced Cross-Tension Property of the Resistance Spot Welded Medium-Mn Steel by In Situ Microstructure Tailoring
Medium Mn steels, one of the most promising 3rd generation advanced high strength steels (AHSS), achieve an encouraging trade-off between the outstanding mechanical property and the production cost. As a typic...
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Article
A SnBiAgIn solder alloy with exceptional mechanical properties by rapid quenching
As a widely adopted candidate in the modern electric industry, much attention has been paid to SnBi solder alloy. However, the intrinsic brittleness of this alloy hinders its further application. To tackle thi...
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Article
Role of Intercritical Annealing in Enhancing the Cross-Tension Property of Resistance Spot-Welded Medium Mn Steel
Among the third-generation advanced high-strength steels, medium Mn steels are one of the most promising candidates in the modern automotive industry. However, their application is challenged by the weldabilit...
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Article
Influence of dealloying solution on the microstructure of nanoporous copper through chemical dealloying of Al75Cu25 ribbons
In this article, Al75Cu25 (at.%) ribbons were dealloyed by HCl, H2C2O4, H3PO4, and NaOH solutions, respectively, to prepare nanoporous copper (NPC). The dealloying behavior is varied with dealloying solutions, al...
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Article
Role of the V-Notch Location in the Impact Toughness of 9 Pct Cr-CrMoV Dissimilar Welded Joints
The location of the V-notch in a weld metal (WM) can have a significant influence on the impact toughness of a 9 weight percent (9 pct) Cr-CrMoV dissimilar welded joint. The specimens with the V-notch at posit...