FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4213145241> ?p ?o ?g. }

• W4213145241 endingPage "117765" @default.
• W4213145241 startingPage "117765" @default.
• W4213145241 abstract "Refractory tungsten (W) is notoriously brittle at room temperature, which restricts its workability and narrows the temperature range of critical applications. Here, we report a multi-scale microstructure modulation strategy to achieve an excellent combination of low-temperature ductility and high strength in bulk pure W. Through fast two-step low temperature sintering of the activated W powders and high-energy-rate forging treatments, unique hierarchical microstructures were constructed in pure W, including lamellar elongated matrix grains, with profuse interior fine sub-grains, and high density of mobile edge and mixed dislocations. At room temperature, the hierarchical structured bulk W exhibits a detectable tensile ductility and an ultimate tensile strength (UTS) of 1.35 GPa. The high strength can be maintained at elevated temperatures, i.e., UTS > 1.0 GPa at 200 °C; it also has a remarkable tensile ductility of 15.3% at this temperature. These properties are significantly better than those reported in bulk pure W and W alloys with second phase particles. The shielding and blunting effects from low-angle grain boundaries and highly mobile dislocations, and the lamellar structure reaped delamination toughening effect are the main mechanisms for the improved low-temperature ductility and strength. This study demonstrates a practical route to achieve attractive low-temperature strength-ductility synergy in bulk W without involving any alloying elements, and it is a feasible and low-cost pathway to design high performance refractory metals and alloys. A schematic diagram summarizing the microstructure evolution: from the fine-grained state (I: as-sintered W) to hierarchical microstructures (II: HERF-W), and the resulted excellent combination of low-temperature ductility and high strength in HERF-W. Noting that the blue and red lines indicate the tensile engineering stress and strain curves at 100 °C." @default.
• W4213145241 created "2022-02-24" @default.
• W4213145241 creator A5030338991 @default.
• W4213145241 creator A5031072322 @default.
• W4213145241 creator A5043641715 @default.
• W4213145241 creator A5045586574 @default.
• W4213145241 creator A5047302242 @default.
• W4213145241 creator A5049096795 @default.
• W4213145241 creator A5083125628 @default.
• W4213145241 date "2022-04-01" @default.
• W4213145241 modified "2023-10-13" @default.
• W4213145241 title "Hierarchical microstructures enabled excellent low-temperature strength-ductility synergy in bulk pure tungsten" @default.
• W4213145241 cites W1438041300 @default.
• W4213145241 cites W1594747280 @default.
• W4213145241 cites W1620035290 @default.
• W4213145241 cites W1966636319 @default.
• W4213145241 cites W1971037716 @default.
• W4213145241 cites W1973881350 @default.
• W4213145241 cites W1974547725 @default.
• W4213145241 cites W1975011591 @default.
• W4213145241 cites W1977341682 @default.
• W4213145241 cites W1986138622 @default.
• W4213145241 cites W1987058857 @default.
• W4213145241 cites W1992262739 @default.
• W4213145241 cites W1992367394 @default.
• W4213145241 cites W2002712959 @default.
• W4213145241 cites W2003033536 @default.
• W4213145241 cites W2004712485 @default.
• W4213145241 cites W2010514768 @default.
• W4213145241 cites W2012986541 @default.
• W4213145241 cites W2019778811 @default.
• W4213145241 cites W2024550465 @default.
• W4213145241 cites W2027500438 @default.
• W4213145241 cites W2031516318 @default.
• W4213145241 cites W2032897706 @default.
• W4213145241 cites W2038107440 @default.
• W4213145241 cites W2042140590 @default.
• W4213145241 cites W2047275416 @default.
• W4213145241 cites W2047553514 @default.
• W4213145241 cites W2047985081 @default.
• W4213145241 cites W2051970830 @default.
• W4213145241 cites W2055259585 @default.
• W4213145241 cites W2055806022 @default.
• W4213145241 cites W2055984333 @default.
• W4213145241 cites W2058330667 @default.
• W4213145241 cites W2059029197 @default.
• W4213145241 cites W2061281811 @default.
• W4213145241 cites W2061580259 @default.
• W4213145241 cites W2062322257 @default.
• W4213145241 cites W2062512966 @default.
• W4213145241 cites W2069506372 @default.
• W4213145241 cites W2071576298 @default.
• W4213145241 cites W2077978663 @default.
• W4213145241 cites W2083727188 @default.
• W4213145241 cites W2087635327 @default.
• W4213145241 cites W2088808435 @default.
• W4213145241 cites W2090521455 @default.
• W4213145241 cites W2093267899 @default.
• W4213145241 cites W2093434887 @default.
• W4213145241 cites W2093770872 @default.
• W4213145241 cites W2123466866 @default.
• W4213145241 cites W2134273637 @default.
• W4213145241 cites W2138173688 @default.
• W4213145241 cites W2170689963 @default.
• W4213145241 cites W2174503814 @default.
• W4213145241 cites W2203008598 @default.
• W4213145241 cites W2207760227 @default.
• W4213145241 cites W2221028596 @default.
• W4213145241 cites W2271746400 @default.
• W4213145241 cites W2278019350 @default.
• W4213145241 cites W2318468906 @default.
• W4213145241 cites W2410233500 @default.
• W4213145241 cites W2415416274 @default.
• W4213145241 cites W2443374262 @default.
• W4213145241 cites W2518118265 @default.
• W4213145241 cites W2521245425 @default.
• W4213145241 cites W2548425582 @default.
• W4213145241 cites W2618193521 @default.
• W4213145241 cites W2735729173 @default.
• W4213145241 cites W2758602331 @default.
• W4213145241 cites W2765148739 @default.
• W4213145241 cites W2766901392 @default.
• W4213145241 cites W2781942526 @default.
• W4213145241 cites W2796580684 @default.
• W4213145241 cites W2799476904 @default.
• W4213145241 cites W2800660778 @default.
• W4213145241 cites W2801948033 @default.
• W4213145241 cites W2803777420 @default.
• W4213145241 cites W2806088025 @default.
• W4213145241 cites W2895697249 @default.
• W4213145241 cites W2903793129 @default.
• W4213145241 cites W2909694998 @default.
• W4213145241 cites W2916541540 @default.
• W4213145241 cites W2922688864 @default.
• W4213145241 cites W2968129984 @default.
• W4213145241 cites W2969833482 @default.
• W4213145241 cites W3037858408 @default.
• W4213145241 cites W3041700656 @default.

• next