由Ｎｉ－Ｃｒ合金制成的燃烧室壁，在烃燃料燃烧的气氛中产生金属外逸型坑点状破坏，严重时可烧穿。作者利用几种现代手段和试验方法，对这一燃烧破坏现象进行了系统地模拟研究，发现这是ＣＯ和低分子烃在高温下对合金共同作用的结果：第一步ＣＯ作用使合金表层发生氧化和碳化，造成裂隙；第二步低分子烃扩散进裂隙并在Ｎｉ－Ｃｒ２Ｏ３微粒的催化下，裂解生在石墨炭并包复在Ｎｉ－Ｃｒ２Ｏ３微粒周围，体积增大。两种作用交替进行，造成金属外逸。基于此，作者提出了“石墨炭顶举金属微粒”的高温催化破坏作用机理。在燃烧室和本生焰条件下，合金表层温度的不均匀性是此种破坏成坑点状的原因 The walls of the combustion chamber made of Ni-Cr alloy produce point-like destruction of the metal escape type pit in the atmosphere in which the hydrocarbon fuel burns and can burn through in severe cases. Using several modern methods and experimental methods, the authors systematically studied this phenomenon of combustion failure and found that this is a result of the co-action of CO and low molecular hydrocarbons at high temperatures on the alloy: The first step CO action causes the alloy skin to occur Oxidation and carbonization, resulting in cracks; the second step low-molecular hydrocarbons diffuse into the cracks and Ni-Cr2O3 particles in the catalysis, cracking occurred in graphite carbon and surrounded by Ni-Cr2O3 particles, the volume increases. Alternate between the two roles, causing the metal to escape. Based on this, the author put forward the mechanism of high temperature catalytic destruction of “Graphite-charcoal metal particles”. In the combustion chamber and Bunsen flame conditions, the nonuniformity of the alloy surface temperature is the reason for the destruction of pit-like