Since writing my first article on dew point versus oxygen analysis in May 2016, we have experienced multiple rounds of brutal heat and humidity that prompted advisories and warnings from Massachusetts to Missouri.
Carbonitriding studies with a high amount of nitrogen are characterized by adding ammonia to the process gas at a higher rate than the usual 3-5%. This work focuses on the impact of nitrogen on the lifetime of carburized parts (e.g. gears, sprockets, bearings, crankshafts) exposed to Hertzian pressure or fatigue.
James R. Stull was not pleased with the local heat-treating industry in southern California back in 1957. So, instead of complaining about it, the tool and die maker did what was necessary – he started his own business.
Check out the May 2017 issue of Industrial Heating, which includes features on Ford's $1.2 billion investment in three Michigan facilities, a roundup of heat-treat process-verification articles, and much more.