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xing bian ruan dan hua fu he chu li dui 08 gang li xue xing neng de ying xiang
Author(s): 
Pages: 1-7
Year: Issue:  4
Journal: Materials Science and Technology

Keyword:  软氮化形变量形变强化复合处理形变氮化冲击功氮化处理试样疲劳强度延伸率;
Abstract: 本文研究了室温形变对08钢软氮化后力学性能的影响,试验结果指出:予先形变的试样经软氮化后随着形变量的增加■及■得到大幅度的提高,60%形变软氮化复合处理后(?)接近70kg/mm~2,而延伸率δ而变化不大;未形变的氮化试样其冲击功Ak小于1kg-cm,断口为典型解理破断,当形变量达50%时,冲击功大幅度增加至其极限制,断口呈完全韧窝状破断,大约30%变形时,断口韧脆各半。通过以上试验首次发现: 在强度大幅度提高的同时韧性亦大幅度提高;并且发现随着形变量的增加冲击断口出现韧——脆转变现象。
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