毛鵬展¹，吳燕明¹，陳小明¹，黃迅雷¹ ，梅華鋒¹，周夏涼^,2，馬紅海³
1. 水利部產品質量標準研究所，浙江杭州 310012；2. 水利部杭州機械設計研究所，浙江杭州 310012；
3.杭州江河機電裝備工程有限公司，浙江杭州 310012

　　摘  要：采用超音速火焰（HVOF）熱噴涂工藝，在ZG06Cr13Ni54Mo不銹鋼上制備了納米WC-10Co-4Cr涂層，利用壓痕法和灰度法分別測試了涂層的顯微硬度和孔隙率，并利用X射線衍射儀（XRD）、掃描電子顯微鏡（SEM）、電子萬能試驗機和磨蝕試驗機分別對涂層的相結構、表面形貌、結合強度和抗磨蝕性能進行了分析和測試。結果表明：獲得的WC-10Co-4Cr涂層的平均顯微硬度和結合強度高，分別達到1435Hv0.2和70.4MPa,組織結構致密。相對于ZG06Cr13Ni54Mo不銹鋼，納米WC-10Co-4Cr涂層具有優異的抗磨蝕性能，其抗磨蝕性能是ZG06Cr13Ni54Mo不銹鋼10倍以上。
　　關鍵詞：超音速火焰噴涂；涂層；WC-10Co-4Cr;磨蝕

 Abrasion and Microstructure Study of WC-10Co-4Cr Coatings Deposited by HVOF Spraying
MAO Peng-zhan¹, WU Yan-ming¹, CHEN Xiao-ming¹, Huang Xun-lei¹,Mei Hua-feng¹,
ZHOU Xia-liang² ,MA Hong-hai³
1. Hangzhou Mechanical Design Research Institute, Ministry of Water Resources, Hangzhou Zhejiang 310012, China;
2. Standard & Quality Control Research Institute, Ministry of Water Resources, Hangzhou;
3. Hangzhou Jianghe Equipment Co, Hangzhou Zhejiang 310012, China Zhejiang 310012, China

　　Abstract: Multimodal WC-10Co-4Cr coating was deposited on ZG06Cr13Ni4Mo stainless steel substrate by using HVOF spraying system. The properties of bond strength, micro hardness, porosity and abrasive wear of the coating were investigated. The phases of the feedstock powder and the coating were analyzed by XRD, The characterizations of spraying feedstock powder, microstructure and surface micrograph wear surfaces were analyzed by SEM. The results have indicated that the WC-10Co-4Cr coating exhibits high bond strength, micro-hardness and compact structure, the average micro-hardness reached to 1435Hv0.2 and the bond strength was more than 70MPa. Compared with the ZG06Cr13Ni4Mo stainless steel, WC-10Co-4Cr coating exhibits excellent anti-abrasion property, the anti-abrasion property of the coating was more than 10 times to the ZG06Cr13Ni4Mo stainless steel.

　　Key words: HVOF; Coatings; WC-10Co-4Cr; Abrasion

責任編輯：趙澤南

《中國腐蝕與防護網電子月刊》征訂啟事
投稿聯系：劉娟 電話：010-82387968-807
QQ: 2850329508 郵箱：liujuan@ecorr.org
中國腐蝕與防護網官方 QQ群：140808414