用测量內耗的方法来研究金属的强度和相变过程是很有效的。許多人利用碳扩散峯研究过碳、氮在α-鉄固溶体中的扩散、溶介度及沉淀。本文作者最近又报导了利用碳扩散峯研究高溫回火过程中铁素体晶教长大过程的結果。碳扩散峯的高度除了与固溶体內碳原子浓度和晶粒大小有直接关系外,碳在α-鉄样品中的宏观不均匀分布对扭摆法测得的峯值也有影响,如果不考虑这个因素,往往会得出不正确的結果。但是,从最近国外发表的論文来看,这个問題还 It is very effective to study the strength and phase transition of metal with the method of measuring internal friction. Many people use carbon diffusion peaks to study the diffusion, solubility and precipitation of carbon and nitrogen in α-鉄 ​​solid solution. The authors recently reported the results of using carbon diffusion peaks to study the ferrite growth during tempering. In addition to the fact that the carbon diffusion peak height is directly related to the carbon atom concentration and grain size in the solid solution, the macroscopically uneven distribution of carbon in the α-鉄 sample also has an influence on the peak measured by the twist-off method. If this factor is not taken into consideration, Will get incorrect results. However, judging from recent papers published abroad, the problem still remains