The unstable solid solution would disintegrate and transform into carbide phases in these systems of sisocso , tisocso and zrsocso , based on the increase of free energy introduced by the effect mechanical alloying . for the system of wsocso , the solid solution had not transformed into tungsten carbides but an amorphous phase , which was different from those systems . the exist of fe in these experiments , which came from the abrasion of ball - milling tool because of the higher hardness of w and w - c solid solution , would induce the crystalline - to - amorphous phase transformation during milling C50球磨體系中,繼續(xù)球磨時(shí),不穩(wěn)定的固溶體在機(jī)械合金化作用下,由于體系能量提高,會(huì)發(fā)生分解相變,從而可以形成碳化物;對(duì)于w扣c50球磨體系, w ? c固溶體具有較高的硬度,磨削不銹鋼質(zhì)的球磨介質(zhì)和球磨容器,而引入雜質(zhì),其中fe會(huì)促使固溶體向非晶相轉(zhuǎn)變。