利用电子显微镜研究了形变热加工处理对晶界结构的影响.研究表明,敏化处理后,因预应变处理而引入孪晶的晶界工程(GBE)可以在大角度晶界得到高比例的非连续分布的低能晶界.在大角度晶界上形成的局部的低能晶界的贫铬程度明显低于原来的大角度晶界的贫铬程度.非连续分布的低能晶界阻断了大角度晶界贫铬的连续性,有效抑制来自于材料表面的沿晶腐蚀.
参考文献
| [1] | Watanabe T.The Potential for Grain Boundary Design in Materials Development[J].Materials Forum,1988:284-303. |
| [2] | Cheung C;Erb U .Application of Grain Boundary Engineering Concepts to Alleviate Intergranular Cracking in Alloys 600 and 690[J].Materials Science and Engineering A,1994,185:39-43. |
| [3] | Y. PAN;B. L. ADAMS;T. OLSON .GRAIN-BOUNDARY STRUCTURE EFFECTS ON INTERGRANULAR STRESS CORROSION CRACKING OF ALLOY X-750[J].Acta materialia,1996(12):4685-4695. |
| [4] | Shimada M;Kokawa H;Wang Z J et al.Optimization of Grain Boundary Character Distribution for Intergranular Corrosion Resistant 304 Stainless Steel by Twin-induced Grain Boundary Engineering[J].Acta Materialia,2002,50:2331-2241. |
| [5] | Lin P;Palumbo G;Erb U et al.Influence of Grain Boundary Character Distribution on Sensitization and Intergranular Corrosion of Alloy 600[J].Scripta Metallurgica et Materialia,1995,33:1387-1392. |
| [6] | Wayne E. King;Adam J. Schwartz .Toward optimization of the grain boundary character distribution in OFE copper[J].Scripta materialia,1998(3):449-455. |
| [7] | Bollmann W.Crystal Defects and Crystalline Interfaces[M].Berlin:Springer-Verlag,1970:184-200. |
| [8] | Brandon D C .The Structure of High-angle Grain Boundaries[J].Acta Metallurgy,1966,14:1479-1484. |
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