81. Galvanising is not a zinc diffusion process. A zinc diffusion process is termed as
82. Nitriding of steel is a process for
83. The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called
84. Duralumin is an alloy of
85. Duriron is
86. Which of the following crystal structures characterises the austenitic stainless steel?
87. Which of the following is a light alloy?
88. Which of the following has no effect on the carbide forming tendency in steels?
89. Which of the following has a very high carbide forming tendency in steels?
90. Cast irons are generally specified by their
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