表面技术
錶麵技術
표면기술
SURFACE TECHNOLOGY
2010年
1期
23-25,40
,共4页
高温涂料保护熔覆%感应熔覆%Ni60自熔性合金粉末%零稀释率熔覆%熔覆层%性能
高溫塗料保護鎔覆%感應鎔覆%Ni60自鎔性閤金粉末%零稀釋率鎔覆%鎔覆層%性能
고온도료보호용복%감응용복%Ni60자용성합금분말%령희석솔용복%용복층%성능
High-temperature protective coating cladding%Induction melting%Ni60 self-fluxing alloy Powder%Non-dilution cladding%Coating%Properties
分别用高温涂料保护熔覆和感应熔覆两种方法在45钢表面制备了Ni60自熔性合金涂层,并用金相显微镜、XRD、SEM和显微硬度计等分析仪器对这2种熔覆层的组织结构和性能进行了分析比较.试验结果表明:在高温涂料保护熔覆过程中,高温保护涂料能够对基体和熔覆层起到很好的防氧化保护作用,熔覆层表面平整、组织致密、与基体之间结合牢固.通过对高温涂料保护熔覆后的试样进行正火处理,可以改善基体的组织和性能,消除因高温熔覆对基体材料带来的不利影响.与感应熔覆相比,高温涂料保护熔覆层质量好,熔覆设备投资少,可以对各种形状的零件表面进行熔覆处理,是一种高效节能的熔覆处理新技术.
分彆用高溫塗料保護鎔覆和感應鎔覆兩種方法在45鋼錶麵製備瞭Ni60自鎔性閤金塗層,併用金相顯微鏡、XRD、SEM和顯微硬度計等分析儀器對這2種鎔覆層的組織結構和性能進行瞭分析比較.試驗結果錶明:在高溫塗料保護鎔覆過程中,高溫保護塗料能夠對基體和鎔覆層起到很好的防氧化保護作用,鎔覆層錶麵平整、組織緻密、與基體之間結閤牢固.通過對高溫塗料保護鎔覆後的試樣進行正火處理,可以改善基體的組織和性能,消除因高溫鎔覆對基體材料帶來的不利影響.與感應鎔覆相比,高溫塗料保護鎔覆層質量好,鎔覆設備投資少,可以對各種形狀的零件錶麵進行鎔覆處理,是一種高效節能的鎔覆處理新技術.
분별용고온도료보호용복화감응용복량충방법재45강표면제비료Ni60자용성합금도층,병용금상현미경、XRD、SEM화현미경도계등분석의기대저2충용복층적조직결구화성능진행료분석비교.시험결과표명:재고온도료보호용복과정중,고온보호도료능구대기체화용복층기도흔호적방양화보호작용,용복층표면평정、조직치밀、여기체지간결합뢰고.통과대고온도료보호용복후적시양진행정화처리,가이개선기체적조직화성능,소제인고온용복대기체재료대래적불리영향.여감응용복상비,고온도료보호용복층질량호,용복설비투자소,가이대각충형상적령건표면진행용복처리,시일충고효절능적용복처리신기술.
The clad layers of Ni60 self-fluxing alloy were prepared on 45 steel by high-temperature protective coating cladding and induction melting respectively. The microstructures, compositions and microhardness of the cladding layers were analyzed and compared by OPM, SEM, XRD and microhardness testing. The experimental results show that the high-temperature protective coating cladding can prevent the Ni60 alloy powder and matrix from oxidizing and a uniform, adherent and non-dilution cladding layer can be obtained. The adverse effects of high temperature on the matrix material can be overcome by means of the normalizing treatment after the high-temperature protective coating cladding. Compared with the induction melting, the high-temperature protective coating cladding has many advantages, such as high cladding quality, low cladding cost, and various shape cladding.
