SAE8720钢的硼铬共渗试验 |
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引用本文: | 赵庆,苏美蓉.SAE8720钢的硼铬共渗试验[J].石油机械,1991,19(7):1-5. |
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作者姓名: | 赵庆 苏美蓉 |
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作者单位: | 西南石油学院
(赵庆,苏美蓉),西南石油学院(齐树敏) |
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摘 要: | 研究了石油牙轮钻头滑动轴承用钢SAE 8720经硼铬共渗处理后所得共渗层的组织形态及相结构;探讨了共渗处理工艺参数对共渗层组织的影响;时比分析了硼铬共渗层与渗硼层的脆性和耐磨性。结果表明,硼铬共渗层比渗硼层有更高的耐磨性争较小的脆性,能满足牙轮钻头滑动轴承的性能要求。
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关 键 词: | 钻头轴承 合金钢 [化学热处理] 金相分析 |
Boron-Chromizing of SAE 8720 Steel for Roller Bits,CPM, |
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Abstract: | This article brings in studies on the microstructure of the boron-chromized layer (B-Cr layer) on SAE 8720 steel, discusses the effect of the process parameters on the structure of B-Cr layer, "compares the brittleness and wear resistance of the B-Cr layer with that of the boronized layer. The investigation shows that the B-Cr layer has higher Wear resistance and lower brittleness and can satisfy the perrormance requirements of the plain bearings on roller bits. |
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