摘要
研究了渗剂中加入稀土化合物和几种常用催渗剂，对钢的固体低温Ｎ—Ｃ共渗效果的影响。结果表明：在主渗剂（混合碳粉和尿素）中，加入７％的稀土化合物（混合氟化稀土），可显著提高钢件渗层厚度（３８ＣｒＭｏＡｌ的化合物层厚可达２７μｍ，扩散层为３００～３５０μｍ）且可改善沙层性能（耐磨性、耐蚀性等）。
With optical microscope,microhardorneter,X-ray diffractometer and wearing tester,the influences of Re chemical compound on the effects of pack carbonitriding are studied.The results show that the properties of the pack carbonitriding agent(contained mixed carbon powder and urea-main penetrating agent,adding 7% Re fluoride)is good,and the penetrating thickness is considerable.Taking 38CrMoAl steel as an example,the compound layer thickness reaches 27pm,diffusion layer 300～350μm,and its resistances to abrasion and corrosion are excellent
出处
《热加工工艺》
CSCD
北大核心
1996年第1期23-25,共3页
Hot Working Technology
关键词
固体
稀土
催渗
碳氮共渗
化学热处理
solid carbonitriding
Re activating penetrating
properties
