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Fe-Ti-B激光熔敷层中TiB2晶须的原位合成
IN SITU SYNTHESIS OF TiB2 WHISKERS IN THE LASER CLADDING Fe-B COATINGS
【摘要】 为了降低激光熔敷Fe-B涂层的高度脆性,使用不同成分的B4C和Fe-Ti合金混合粉末在奥氏体不锈钢基体上进行了激光熔敷,得到了具有TiB2晶须强化的复合Fe-Ti-B涂层、该涂层在保持原来Fe-B涂层的高硬度的同时,其抗裂性能亦得到了改善.
【Abstract】 In order to reduce the high brittleness of laser clad Fe-B coatings, the Fe-Ti-B composite coating with TiB2 whiskers reinforcement was developed by laser cladding with a powder mixture of 640 and Fe-Ti alloy. Compared with Fe-B laser cladding coating, the cracking resistance of the Fe-Ti-B composite coating is obviously improved, while its hardness is not impaired.
【基金】 天津市自然科学基金资助项目00360381
- 【文献出处】 金属学报 ,Acta Metallrugica Sinica , 编辑部邮箱 ,2003年02期
- 【分类号】TG174.4
- 【被引频次】21
- 【下载频次】242