Grain boundary engineering for control of sulfur segregation-induced embrittlement in ultrafine-grained nickel
Grain boundary engineering for control of sulfur segregation-induced embrittlement in ultrafine-grained nickel
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DOI：
10.1016/j.scriptamat.2009.11.022
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发表时间：
2010-03
影响因子：
6
通讯作者：
S. Kobayashi;S. Tsurekawa;Tadao Watanabe;G. Palumbo
中科院分区：
文献类型：
--
作者：
S. Kobayashi;S. Tsurekawa;Tadao Watanabe;G. Palumbo
研究了超细晶镍中硫向晶界偏聚引起的脆性控制。通过控制晶界组织可以有效地改善脆性。具有较高比例特殊晶界的试样，即使在含硫条件下也具有较高的断裂韧性。这表明，晶界工程是适用于控制偏聚诱发脆化的超细晶材料。
Control of brittleness associated with segregation of sulfur to grain boundaries in ultrafine-grained nickel was investigated. The brittleness could be successfully improved by controlling the grain boundary microstructure. The specimens with a higher fraction of special boundaries can have higher fracture toughness even in sulfur-bearing condition. It is evident that grain boundary engineering is applicable to controlling segregation-induced embrittlement in ultrafine-grained materials.