APPLICATION OF GRAIN-BOUNDARY ENGINEERING CONCEPTS TO ALLEVIATE INTERGRANULAR CRACKING IN ALLOYS-600 AND ALLOYS-690

被引：117
|
作者：
CHEUNG, C [1 ]
ERB, U [1 ]
PALUMBO, G [1 ]
机构：
[1] ONTARIO HYDRO, DIV RES, TORONTO M8Z 5S4, ONTARIO, CANADA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1994年 / 185卷 / 1-2期
关键词：
D O I：
10.1016/0921-5093(94)90925-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nickel-based alloys used in nuclear steam generator tubing have been found to be susceptible to intergranular stress corrosion cracking while in service. Following a recently developed model, grain boundary engineering concepts may be used to alleviate these concerns. This paper presents a report on the grain refinement approach in the proposed model which results in a higher probability of arresting stress corrosion cracks before reaching a critical length at which failure occurs. For this purpose, an electroplating system was developed to produce ternary Ni-Cr-Fe alloy coatings. Electroplating conditions are given for the production of Alloys 600 ana 690 having an average grain size in the range 100-250 nm.
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收藏
页码：39 / 43
页数：5
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