辽宁工业大学学报(自然科学版)
遼寧工業大學學報(自然科學版)
료녕공업대학학보(자연과학판)
JOURNAL OF LIAONING UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
2期
124-127
,共4页
价电子结构%微合金钢%第二相粒子
價電子結構%微閤金鋼%第二相粒子
개전자결구%미합금강%제이상입자
valence electron structures%microalloyed steel%secondary phase particle
基于“固体与分子经验电子理论”(EET),利用最强键的键能差?E′分析第二相粒子在焊接热循MX A环过程中的溶解行为。研究结果表明,相同的焊接热循环条件下,?E′值较小的VC(N)优先溶解;而VC(N)?E′TiC(N) A A值较大的TiC(N)最后溶解;?E′值居中,则NbC(N)溶解顺序居中。同时也能利用键能差值分析焊接HAZ中NbC(N) A第二相粒子溶解程度按VC、VN、NbC、NbN、TiC、TiN顺序依次减小的规律。上述分析结果与实验结果符合很好。
基于“固體與分子經驗電子理論”(EET),利用最彊鍵的鍵能差?E′分析第二相粒子在銲接熱循MX A環過程中的溶解行為。研究結果錶明,相同的銲接熱循環條件下,?E′值較小的VC(N)優先溶解;而VC(N)?E′TiC(N) A A值較大的TiC(N)最後溶解;?E′值居中,則NbC(N)溶解順序居中。同時也能利用鍵能差值分析銲接HAZ中NbC(N) A第二相粒子溶解程度按VC、VN、NbC、NbN、TiC、TiN順序依次減小的規律。上述分析結果與實驗結果符閤很好。
기우“고체여분자경험전자이론”(EET),이용최강건적건능차?E′분석제이상입자재한접열순MX A배과정중적용해행위。연구결과표명,상동적한접열순배조건하,?E′치교소적VC(N)우선용해;이VC(N)?E′TiC(N) A A치교대적TiC(N)최후용해;?E′치거중,칙NbC(N)용해순서거중。동시야능이용건능차치분석한접HAZ중NbC(N) A제이상입자용해정도안VC、VN、NbC、NbN、TiC、TiN순서의차감소적규률。상술분석결과여실험결과부합흔호。
Based on the empirical electron theory of solid and molecule(EET), the dissolution behaviour of secondary phase particles during weld thermal cycles was analyzed with the difference between bond energy of the strongest covalent bond( A?E′). The results were as follows, under the same condition of weld thermal cycles, VC(N) particles with the smaller VC(N)A?E′ is dissolved first. TiC(N) particles with the largest TiC(N)A?E′ is dissolved last, while NbC(N) particles with the middle NbC(N)A?E′ is dissolved in the middle. The dissolution degree of secondary phase particles can also be explained by the bond energy difference. i.e., The above studied results agree well with the experimental ones.