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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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氢对镍基合金inconelalloy600力学性能的影响
, PP. 46-50
Keywords: 电化学充氢,镍基合金inconelalloy600,塑性减损,氢脆
Abstract:
？通过建立一套电化学充氢和可扩散氢含量测量装置，对镍基合金inconelalloy600（600合金）板试样充氢后进行常温拉伸试验，研究了600合金在充氢前后力学性能的变化及其与氢含量的关系。结果表明：材料在充氢后塑性有一定的减损，且减损的程度随着平均氢浓度的增加而增加，当充入试样中的平均氢质量分数大于10×10-6时，相对断面收缩率达到10%以上，达到氢损伤范畴。此外氢进入600合金还使材料的屈服强度、抗拉强度和弹性模量也降低。扫描电镜（sem）测试表明：充氢前后试样断口的表层由韧性断裂变为由氢导致的沿晶脆性断裂。
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