静态腐蚀对Zr-4合金管材承压能力的影响
China Nuclear Power（2020）
Abstract
通过对Zr-4合金管材试样在360℃、18.6 MPa、50 min条件下进行渗氢试验,研究了静态高压渗氢腐蚀对Zr-4管材承压能力的影响.采用管材爆破试验对Zr-4管材承压能力进行了测试.试验结果表明,静态高压渗氢腐蚀会造成Zr-4合金管材承压能力大幅下降承压时间变短,加快了Zr-4管材的失效,宏观观察及微观断口扫描发现,管材的爆破开裂由未腐蚀的延性开裂转变为腐蚀后的脆性开裂.
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