同时探索出一种新的管线钢原奥氏体晶界腐蚀方法。
A new method for showing the prior austenite crystal boundary corrosion, of pipeline steel has been also supposed.
而黄铜板的腐蚀形貌以表面颜色逐渐变红、腐蚀产物的增加、点蚀的增加、严重的晶界腐蚀为主。
The surface morphology of brass plate was changed too, the color of brass gradually turned red, the corrosion products and pitting increased, obvious intergranular corrosion appeared.
沿着晶界发生的应力腐蚀开裂。
Stress corrosion cracking in which the cracking occurs along grain boundaries.
优先腐裂或沿着金属晶界发生的腐蚀。
Preferential corrosion cracking at or along the grain boundaries of a metal.
高氮低镍不锈钢具有良好的强度、延展性及耐腐蚀性能，且可以降低晶界的腐蚀敏感性。
High nitrogen and low nickel stainless steels exhibit attractive properties as high strength and ductility, good corrosion resistance and reduced tendency to grain boundary sensitization.
T73和RRA时效处理改善了合金晶界特性，有助于阻止氢脆、减缓晶界阳极溶解速度，提高合金的抗应力腐蚀能力。
T73 and RRA treatment improve the grain boundary character, which is help to inhibit hydrogen embrittlement and decrease anodic dissolution rate, then to improve the SCCR of the alloy.
同时，晶界沉淀物的端部由尖锐变得圆钝，晶界临近区域中的合金元素贫化，使材料的应力腐蚀抗力提高。
Meanwhile, the tip of precipitates along grain boundary becomes obtuse, the alloying elements are depleted in the region near the grain boundary and the stress corrosion resistance is bettered.
与不加稀土时相比，焊缝中沿晶界析出碳化物的尺寸减小、数量减少、析出形态由网状析出变为不连续的颗粒状，抗晶间腐蚀能力得到提高。
Intergranular corrosion resistance was increased owing to the lessening of carbide particles formed at austenite grain boundaries and morphology changing from reticular to granular.
耐腐蚀性强，本产品化学镀镍处理后的表面是一种非晶态镀层，因无晶界，所以抗腐蚀性特别优良（见表一）。
Corrosion resistance, the surface treatment of the product is amorphous coating, without a grain boundary, so particular corrosion resistance(see Table 1).
但是晶粒尺寸增大后晶界处因局部腐蚀电流密度增大将会在局部造成更深的腐蚀坑槽并降低耐候性；
The total quantity of corrosion surface defect is decreased due to the decrease of grain boundary energy with the increase of grain size and the atmospheric corrosion resistance is increased.
在时效过程中S’析出相、晶界析出相和无沉淀析出带的变化是影响合金预拉伸厚板腐蚀行为的主因。
The effect of aging treatment on corrosion sensitivity is closely related to S' phase, the phase precipitated in grain boundary and precipitate-free zone.
故认为磷（硅）的晶界富集是固溶态316L不锈钢在尿素生产介质中产生晶间腐蚀的重要原因之一。
Therefore, the authors consider that segregation of P and Si at grain boundaries is one of the important reasons for IGC of non-sensitized 316L SS in the urea medium.
残余铜含量越高，晶界与基体界面氧化腐蚀越严重，热脆性倾向越大；
The more the content of residual copper in steel, the more severely the oxidation corrosion occurs on grain boundary and matrix, the greater the hot brittleness tendency;
残余铜含量越高，晶界与基体界面氧化腐蚀越严重，热脆性倾向越大；
The more the content of residual copper in steel, the more severely the oxidation corrosion occurs on grain boundary and matrix, the greater the hot brittleness tendency;
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