铸造烧结法制备表面铁基复合材料的致密化机理及耐磨性能
Densification Mechanism and Wear Resistance of Fe Matrix Surface Composite Produced by Cast Sintering Technology
摘 要
用SEM、XRD等分析了用铸造烧结法在HT200灰铸铁表面制备的复合材料的组织与物相组成,用EDS分析了该复合材料与基体结合界面的元素分布,分析了其致密化机理;测试了此复合材料的耐磨性能.结果表明:在铸造烧结过程中,压坯中的σ-(FeV)相迅速分解出α-Fe和钒,V8C7相的强放热反应及铁液传递给压坯的热流密度保证了压坯迅速完成烧结致密化,得到由微米V8C7颗粒和α-Fe相组成的复合材料,增强相颗粒与基体相结合良好;复合材料与灰铸铁形成了冶金结合;在重载、干滑动摩擦条件下,此复合材料的耐磨性比淬火45钢提高了44.5倍.
原位合成
铁基复合材料
耐磨性能
cast sintering technology
in situ synthesis
Fe matrix composite
wear-resisting property
Abstract
The microstructure and phase composition of the composite on gray cast-iron HT200 surface prepared by cast sintering technology was analyzed by using SEM and XRD.The elementary distribution between surface composite and matrix metal was analyzed by using EDS.The wear-resistance of Fe matrix composite surface was examined.The densification mechanism was analyzed.The results show that the σ-(FeV) phase in the compacts was decomposed into α-Fe and V during the cast sintering process.The high exothermic reactions of the V8C7 phase and the thermal flow transferring from the liquid iron to the compacts guaranteed the compacts densification during sintering,the composite composed of micro V8C7 particles and α-Fe phase could be obtained.The strengthening phase particles combined with the matrix well,the composite and the gray cast-iron was metallurgical binding.The wear-resisting property of the surface Fe matrix composite increased by 44.5 times than that of quenched steel under the condition of heavy load and dry sliding friction.
中图分类号 TB331
所属栏目 新材料 新工艺
基金项目 西华大学人才培养基金资助项目(0421024)
收稿日期 2009/3/26
修改稿日期 2009/10/20
网络出版日期
作者单位点击查看
备注杨世洲(1972-),男,四川眉山人,讲师,硕士.
引用该论文: YANG Shi-zhou,DING Yi-chao. Densification Mechanism and Wear Resistance of Fe Matrix Surface Composite Produced by Cast Sintering Technology[J]. Materials for mechancial engineering, 2010, 34(4): 38～41
杨世洲,丁义超. 铸造烧结法制备表面铁基复合材料的致密化机理及耐磨性能[J]. 机械工程材料, 2010, 34(4): 38～41
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】MEI Z,YAN Y W,CUI K.Effect of matrix composition on the microstructure of in situ synthesized TiC particulate reinforced iron-based composites[J].Materials Letters,2003,57(21):3175-3181.
【2】DAS K,BANDYOPADHYAY T K.Effect of form of carbon on the microstructure of in situ synthesized TiC reinforced iron-based composite[J].Materials Letters,2004,58(12/13):1877-1880.
【3】FENG Ke-qin,YANG Yi,SHEN Bao-luo,et al.In situ synthesis of TiC/Fe composites by reaction casting[J].Materials & Design,2005,26(1):37-40.
【4】于化顺.金属基复合材料及其制备技术[M].北京:化学工业出版社,2006.
【5】杨屹,冯可芹,王一三,等.铸造烧结法[J].热加工工艺,2003(4):38-40.
【6】丁义超,王一三,朱达川,等.铸造烧结V8C7-Fe表面金属陶瓷的研究[J].铸造技术,2003,24(4):324-326.
【7】程凤军,王一三,丁义超,等.原位内生碳化钒颗粒增强铁基表面复合材料的研究[J].铸造技术,2005,26(5):377-379.
【8】李凤春,王一三,杨屹,等.铸造烧结Fe-TiC表面复合材料的制备及其耐磨性研究[J].热加工工艺,2001(2):19-21.
【9】杨世洲,王一三,丁义超.VC-WC-Fe基表面复合材料的显微组织研究[J].热加工工艺,2004(8):22-23.
【10】李文虎,刘福田,朱陆益,等.铸造烧结三元硼化物硬质合金-钢覆层材料[J].铸造技术,2006,27(6):594-597.
【11】高彩桥.摩擦金属学[M].哈尔滨:哈尔滨工业大学出版社,1987.
【12】叶大伦,胡建华.实用无机物热力学数据手册[M].北京:冶金工业出版社,2002.
【2】DAS K,BANDYOPADHYAY T K.Effect of form of carbon on the microstructure of in situ synthesized TiC reinforced iron-based composite[J].Materials Letters,2004,58(12/13):1877-1880.
【3】FENG Ke-qin,YANG Yi,SHEN Bao-luo,et al.In situ synthesis of TiC/Fe composites by reaction casting[J].Materials & Design,2005,26(1):37-40.
【4】于化顺.金属基复合材料及其制备技术[M].北京:化学工业出版社,2006.
【5】杨屹,冯可芹,王一三,等.铸造烧结法[J].热加工工艺,2003(4):38-40.
【6】丁义超,王一三,朱达川,等.铸造烧结V8C7-Fe表面金属陶瓷的研究[J].铸造技术,2003,24(4):324-326.
【7】程凤军,王一三,丁义超,等.原位内生碳化钒颗粒增强铁基表面复合材料的研究[J].铸造技术,2005,26(5):377-379.
【8】李凤春,王一三,杨屹,等.铸造烧结Fe-TiC表面复合材料的制备及其耐磨性研究[J].热加工工艺,2001(2):19-21.
【9】杨世洲,王一三,丁义超.VC-WC-Fe基表面复合材料的显微组织研究[J].热加工工艺,2004(8):22-23.
【10】李文虎,刘福田,朱陆益,等.铸造烧结三元硼化物硬质合金-钢覆层材料[J].铸造技术,2006,27(6):594-597.
【11】高彩桥.摩擦金属学[M].哈尔滨:哈尔滨工业大学出版社,1987.
【12】叶大伦,胡建华.实用无机物热力学数据手册[M].北京:冶金工业出版社,2002.
相关信息
