兵器材料科学与工程
兵器材料科學與工程
병기재료과학여공정
Ordnance Material Science and Engineering
2010年
2期
82-85
,共4页
微波烧结%钨合金%致密化%力学性能
微波燒結%鎢閤金%緻密化%力學性能
미파소결%오합금%치밀화%역학성능
microwave sintering%tungsten alloy%densification%mechanical property
微波烧结与传统烧结在加热原理上有着本质的区别.在钨合金传统烧结方式的基础上引入微波烧结这一新式烧结技术,对φ30 mm×110 mm 93W-Ni-Fe合金坯料微波烧结工艺进行探索,研究加热方式对93W-Ni-Fe合金密度、硬度、金相组织和力学性能的影响.试验表明:微波烧结试样组织均匀、细小,钨颗粒明显小于传统烧结水平;径向性能分布均匀;微波加热能达到常规尺寸钨合金的透烧深度,但仍存在一定烧结缺陷..
微波燒結與傳統燒結在加熱原理上有著本質的區彆.在鎢閤金傳統燒結方式的基礎上引入微波燒結這一新式燒結技術,對φ30 mm×110 mm 93W-Ni-Fe閤金坯料微波燒結工藝進行探索,研究加熱方式對93W-Ni-Fe閤金密度、硬度、金相組織和力學性能的影響.試驗錶明:微波燒結試樣組織均勻、細小,鎢顆粒明顯小于傳統燒結水平;徑嚮性能分佈均勻;微波加熱能達到常規呎吋鎢閤金的透燒深度,但仍存在一定燒結缺陷..
미파소결여전통소결재가열원리상유착본질적구별.재오합금전통소결방식적기출상인입미파소결저일신식소결기술,대φ30 mm×110 mm 93W-Ni-Fe합금배료미파소결공예진행탐색,연구가열방식대93W-Ni-Fe합금밀도、경도、금상조직화역학성능적영향.시험표명:미파소결시양조직균균、세소,오과립명현소우전통소결수평;경향성능분포균균;미파가열능체도상규척촌오합금적투소심도,단잉존재일정소결결함..
The heating principle of microwave sintering(MS)is fundamentally different from that of conventional sintering(CS).This study introduced the new technology-MS on the basis of CS,probed the MS sintering technology of φ30 mm×110 mm 93W-Ni-Fe alloy ingots,and compared the effects of two heating modes on the hardness,grain size,mierostrueture and mechanical properties.The experiments show that the microwave sintered samples have even-distributed fine microstructure and tungsten particles ale obviously smaller than that of CS.In terms of equally distributed radial property of MS,microwave heating can come up to the completely sintered depth of conventional size of tungsten alloy.It's necessary to optimize the present microwave sintering technology because some defects of sintering still exist in the sintered samples.
